Finding the Fourth Proportional to 61,042.12, 91,399.12 and 38,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   61,042.12 : 91,399.12 = 38,734.72 : x
2. Step 2: Convert to fraction form
   61,042.12/91,399.12 = 38,734.72/x
3. Step 3: Cross multiply
   61,042.12x = 91,399.12 × 38,734.72
4. Step 4: Simplify right side
   61,042.12x = 3,540,319,321.45
5. Step 5: Solve for x
   x = 3,540,319,321.45/61,042.12
6. Step 6: Final answer
   x = 57,997.97