Finding the Fourth Proportional to 98,065.20, 147,057.48 and 38,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98,065.20 : 147,057.48 = 38,892.72 : x
2. Step 2: Convert to fraction form
   98,065.20/147,057.48 = 38,892.72/x
3. Step 3: Cross multiply
   98,065.20x = 147,057.48 × 38,892.72
4. Step 4: Simplify right side
   98,065.20x = 5,719,465,393.55
5. Step 5: Solve for x
   x = 5,719,465,393.55/98,065.20
6. Step 6: Final answer
   x = 58,323.09