Finding the Fourth Proportional to 70,417.42, 105,080.17 and 62,939.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,417.42 : 105,080.17 = 62,939.50 : x
2. Step 2: Convert to fraction form
   70,417.42/105,080.17 = 62,939.50/x
3. Step 3: Cross multiply
   70,417.42x = 105,080.17 × 62,939.50
4. Step 4: Simplify right side
   70,417.42x = 6,613,693,359.72
5. Step 5: Solve for x
   x = 6,613,693,359.72/70,417.42
6. Step 6: Final answer
   x = 93,921.27