Finding the Fourth Proportional to 60,740.30, 91,110.46 and 31,139.25

Step by Step Solution

1. Step 1: Write the proportion equation
   60,740.30 : 91,110.46 = 31,139.25 : x
2. Step 2: Convert to fraction form
   60,740.30/91,110.46 = 31,139.25/x
3. Step 3: Cross multiply
   60,740.30x = 91,110.46 × 31,139.25
4. Step 4: Simplify right side
   60,740.30x = 2,837,111,691.32
5. Step 5: Solve for x
   x = 2,837,111,691.32/60,740.30
6. Step 6: Final answer
   x = 46,708.89