Finding the Fourth Proportional to 227,061.18, 340,602.57 and 86,831.82

Step by Step Solution

1. Step 1: Write the proportion equation
   227,061.18 : 340,602.57 = 86,831.82 : x
2. Step 2: Convert to fraction form
   227,061.18/340,602.57 = 86,831.82/x
3. Step 3: Cross multiply
   227,061.18x = 340,602.57 × 86,831.82
4. Step 4: Simplify right side
   227,061.18x = 29,575,141,049.78
5. Step 5: Solve for x
   x = 29,575,141,049.78/227,061.18
6. Step 6: Final answer
   x = 130,251.86