Finding the Fourth Proportional to 149,835.20, 224,751.24 and 86,615.10

Step by Step Solution

1. Step 1: Write the proportion equation
   149,835.20 : 224,751.24 = 86,615.10 : x
2. Step 2: Convert to fraction form
   149,835.20/224,751.24 = 86,615.10/x
3. Step 3: Cross multiply
   149,835.20x = 224,751.24 × 86,615.10
4. Step 4: Simplify right side
   149,835.20x = 19,466,851,127.72
5. Step 5: Solve for x
   x = 19,466,851,127.72/149,835.20
6. Step 6: Final answer
   x = 129,921.75