Finding the Fourth Proportional to 142,591.32, 196,566.41 and 108,540.47

Step by Step Solution

1. Step 1: Write the proportion equation
   142,591.32 : 196,566.41 = 108,540.47 : x
2. Step 2: Convert to fraction form
   142,591.32/196,566.41 = 108,540.47/x
3. Step 3: Cross multiply
   142,591.32x = 196,566.41 × 108,540.47
4. Step 4: Simplify right side
   142,591.32x = 21,335,411,290.38
5. Step 5: Solve for x
   x = 21,335,411,290.38/142,591.32
6. Step 6: Final answer
   x = 149,626.30