Finding the Fourth Proportional to 261,932,382.72, 392,938,931.52 and 89,368,971.84

Step by Step Solution

1. Step 1: Write the proportion equation
   261,932,382.72 : 392,938,931.52 = 89,368,971.84 : x
2. Step 2: Convert to fraction form
   261,932,382.72/392,938,931.52 = 89,368,971.84/x
3. Step 3: Cross multiply
   261,932,382.72x = 392,938,931.52 × 89,368,971.84
4. Step 4: Simplify right side
   261,932,382.72x = 35,116,548,305,850,568
5. Step 5: Solve for x
   x = 35,116,548,305,850,568/261,932,382.72
6. Step 6: Final answer
   x = 134,067,227.36