Finding the Fourth Proportional to 131,598,678.63, 181,608,947.28 and 72,062,475.15

Step by Step Solution

1. Step 1: Write the proportion equation
   131,598,678.63 : 181,608,947.28 = 72,062,475.15 : x
2. Step 2: Convert to fraction form
   131,598,678.63/181,608,947.28 = 72,062,475.15/x
3. Step 3: Cross multiply
   131,598,678.63x = 181,608,947.28 × 72,062,475.15
4. Step 4: Simplify right side
   131,598,678.63x = 13,087,190,250,382,662
5. Step 5: Solve for x
   x = 13,087,190,250,382,662/131,598,678.63
6. Step 6: Final answer
   x = 99,447,732.96