Finding the Fourth Proportional to 142,715.52, 214,002.72 and 83,566.08

Step by Step Solution

1. Step 1: Write the proportion equation
   142,715.52 : 214,002.72 = 83,566.08 : x
2. Step 2: Convert to fraction form
   142,715.52/214,002.72 = 83,566.08/x
3. Step 3: Cross multiply
   142,715.52x = 214,002.72 × 83,566.08
4. Step 4: Simplify right side
   142,715.52x = 17,883,368,419.74
5. Step 5: Solve for x
   x = 17,883,368,419.74/142,715.52
6. Step 6: Final answer
   x = 125,307.80