Finding the Fourth Proportional to 115,119.27, 158,862.20 and 64,131.93

Step by Step Solution

1. Step 1: Write the proportion equation
   115,119.27 : 158,862.20 = 64,131.93 : x
2. Step 2: Convert to fraction form
   115,119.27/158,862.20 = 64,131.93/x
3. Step 3: Cross multiply
   115,119.27x = 158,862.20 × 64,131.93
4. Step 4: Simplify right side
   115,119.27x = 10,188,139,490.05
5. Step 5: Solve for x
   x = 10,188,139,490.05/115,119.27
6. Step 6: Final answer
   x = 88,500.73