Finding the Fourth Proportional to 165,949,686.72, 229,004,564.48 and 91,608,650.56

Step by Step Solution

1. Step 1: Write the proportion equation
   165,949,686.72 : 229,004,564.48 = 91,608,650.56 : x
2. Step 2: Convert to fraction form
   165,949,686.72/229,004,564.48 = 91,608,650.56/x
3. Step 3: Cross multiply
   165,949,686.72x = 229,004,564.48 × 91,608,650.56
4. Step 4: Simplify right side
   165,949,686.72x = 20,978,799,124,093,308
5. Step 5: Solve for x
   x = 20,978,799,124,093,308/165,949,686.72
6. Step 6: Final answer
   x = 126,416,623.85