Finding the Fourth Proportional to 83,019.13, 124,613.43 and 60,766.40

Step by Step Solution

1. Step 1: Write the proportion equation
   83,019.13 : 124,613.43 = 60,766.40 : x
2. Step 2: Convert to fraction form
   83,019.13/124,613.43 = 60,766.40/x
3. Step 3: Cross multiply
   83,019.13x = 124,613.43 × 60,766.40
4. Step 4: Simplify right side
   83,019.13x = 7,572,309,532.75
5. Step 5: Solve for x
   x = 7,572,309,532.75/83,019.13
6. Step 6: Final answer
   x = 91,211.62