Finding the Fourth Proportional to 107,831.52, 148,760.55 and 64,827.81

Step by Step Solution

1. Step 1: Write the proportion equation
   107,831.52 : 148,760.55 = 64,827.81 : x
2. Step 2: Convert to fraction form
   107,831.52/148,760.55 = 64,827.81/x
3. Step 3: Cross multiply
   107,831.52x = 148,760.55 × 64,827.81
4. Step 4: Simplify right side
   107,831.52x = 9,643,820,670.90
5. Step 5: Solve for x
   x = 9,643,820,670.90/107,831.52
6. Step 6: Final answer
   x = 89,434.15