Finding the Fourth Proportional to 215,815,086.72, 297,824,609.70 and 116,695,596.78

Step by Step Solution

1. Step 1: Write the proportion equation
   215,815,086.72 : 297,824,609.70 = 116,695,596.78 : x
2. Step 2: Convert to fraction form
   215,815,086.72/297,824,609.70 = 116,695,596.78/x
3. Step 3: Cross multiply
   215,815,086.72x = 297,824,609.70 × 116,695,596.78
4. Step 4: Simplify right side
   215,815,086.72x = 34,754,820,564,712,076
5. Step 5: Solve for x
   x = 34,754,820,564,712,076/215,815,086.72
6. Step 6: Final answer
   x = 161,039,810.02