Finding the Fourth Proportional to 92,126.72, 138,081.72 and 52,711.04

Step by Step Solution

1. Step 1: Write the proportion equation
   92,126.72 : 138,081.72 = 52,711.04 : x
2. Step 2: Convert to fraction form
   92,126.72/138,081.72 = 52,711.04/x
3. Step 3: Cross multiply
   92,126.72x = 138,081.72 × 52,711.04
4. Step 4: Simplify right side
   92,126.72x = 7,278,431,066.19
5. Step 5: Solve for x
   x = 7,278,431,066.19/92,126.72
6. Step 6: Final answer
   x = 79,004.56