Finding the Fourth Proportional to 149,868.10, 224,766.15 and 86,551.30

Step by Step Solution

1. Step 1: Write the proportion equation
   149,868.10 : 224,766.15 = 86,551.30 : x
2. Step 2: Convert to fraction form
   149,868.10/224,766.15 = 86,551.30/x
3. Step 3: Cross multiply
   149,868.10x = 224,766.15 × 86,551.30
4. Step 4: Simplify right side
   149,868.10x = 19,453,802,478.50
5. Step 5: Solve for x
   x = 19,453,802,478.50/149,868.10
6. Step 6: Final answer
   x = 129,806.16