Finding the Fourth Proportional to 60,670.68, 83,673.18 and 39,442.20

Step by Step Solution

1. Step 1: Write the proportion equation
   60,670.68 : 83,673.18 = 39,442.20 : x
2. Step 2: Convert to fraction form
   60,670.68/83,673.18 = 39,442.20/x
3. Step 3: Cross multiply
   60,670.68x = 83,673.18 × 39,442.20
4. Step 4: Simplify right side
   60,670.68x = 3,300,254,300.20
5. Step 5: Solve for x
   x = 3,300,254,300.20/60,670.68
6. Step 6: Final answer
   x = 54,396.20