Finding the Fourth Proportional to 208,491,288.42, 287,712,500.06 and 114,405,146.31

Step by Step Solution

1. Step 1: Write the proportion equation
   208,491,288.42 : 287,712,500.06 = 114,405,146.31 : x
2. Step 2: Convert to fraction form
   208,491,288.42/287,712,500.06 = 114,405,146.31/x
3. Step 3: Cross multiply
   208,491,288.42x = 287,712,500.06 × 114,405,146.31
4. Step 4: Simplify right side
   208,491,288.42x = 32,915,790,664,008,160
5. Step 5: Solve for x
   x = 32,915,790,664,008,160/208,491,288.42
6. Step 6: Final answer
   x = 157,876,095.99