Finding the Fourth Proportional to 83,505,636,490.79, 115,241,573,086.24 and 49,212,790,385.15

Step by Step Solution

1. Step 1: Write the proportion equation
   83,505,636,490.79 : 115,241,573,086.24 = 49,212,790,385.15 : x
2. Step 2: Convert to fraction form
   83,505,636,490.79/115,241,573,086.24 = 49,212,790,385.15/x
3. Step 3: Cross multiply
   83,505,636,490.79x = 115,241,573,086.24 × 49,212,790,385.15
4. Step 4: Simplify right side
   83,505,636,490.79x = 5,671,359,379,948,073,648,128
5. Step 5: Solve for x
   x = 5,671,359,379,948,073,648,128/83,505,636,490.79
6. Step 6: Final answer
   x = 67,915,887,097.92