Finding the Fourth Proportional to 87,061.23, 120,154.59 and 48,831.26

Step by Step Solution

1. Step 1: Write the proportion equation
   87,061.23 : 120,154.59 = 48,831.26 : x
2. Step 2: Convert to fraction form
   87,061.23/120,154.59 = 48,831.26/x
3. Step 3: Cross multiply
   87,061.23x = 120,154.59 × 48,831.26
4. Step 4: Simplify right side
   87,061.23x = 5,867,299,423.71
5. Step 5: Solve for x
   x = 5,867,299,423.71/87,061.23
6. Step 6: Final answer
   x = 67,392.79