Finding the Fourth Proportional to 49,053,641.76, 67,638,249.45 and 31,388,985.18

Step by Step Solution

1. Step 1: Write the proportion equation
   49,053,641.76 : 67,638,249.45 = 31,388,985.18 : x
2. Step 2: Convert to fraction form
   49,053,641.76/67,638,249.45 = 31,388,985.18/x
3. Step 3: Cross multiply
   49,053,641.76x = 67,638,249.45 × 31,388,985.18
4. Step 4: Simplify right side
   49,053,641.76x = 2,123,096,009,587,193.25
5. Step 5: Solve for x
   x = 2,123,096,009,587,193.25/49,053,641.76
6. Step 6: Final answer
   x = 43,281,108.87