Finding the Fourth Proportional to 146,558.42, 202,239.15 and 86,131.34

Step by Step Solution

1. Step 1: Write the proportion equation
   146,558.42 : 202,239.15 = 86,131.34 : x
2. Step 2: Convert to fraction form
   146,558.42/202,239.15 = 86,131.34/x
3. Step 3: Cross multiply
   146,558.42x = 202,239.15 × 86,131.34
4. Step 4: Simplify right side
   146,558.42x = 17,419,128,989.96
5. Step 5: Solve for x
   x = 17,419,128,989.96/146,558.42
6. Step 6: Final answer
   x = 118,854.51