Finding the Fourth Proportional to 142,531.52, 196,662.24 and 85,162.22

Step by Step Solution

1. Step 1: Write the proportion equation
   142,531.52 : 196,662.24 = 85,162.22 : x
2. Step 2: Convert to fraction form
   142,531.52/196,662.24 = 85,162.22/x
3. Step 3: Cross multiply
   142,531.52x = 196,662.24 × 85,162.22
4. Step 4: Simplify right side
   142,531.52x = 16,748,191,965.26
5. Step 5: Solve for x
   x = 16,748,191,965.26/142,531.52
6. Step 6: Final answer
   x = 117,505.18