Finding the Fourth Proportional to 149,830.52, 206,772.41 and 86,168.37

Step by Step Solution

1. Step 1: Write the proportion equation
   149,830.52 : 206,772.41 = 86,168.37 : x
2. Step 2: Convert to fraction form
   149,830.52/206,772.41 = 86,168.37/x
3. Step 3: Cross multiply
   149,830.52x = 206,772.41 × 86,168.37
4. Step 4: Simplify right side
   149,830.52x = 17,817,241,099.83
5. Step 5: Solve for x
   x = 17,817,241,099.83/149,830.52
6. Step 6: Final answer
   x = 118,915.96