Finding the Fourth Proportional to 156,749.61, 216,380.61 and 105,831.27

Step by Step Solution

1. Step 1: Write the proportion equation
   156,749.61 : 216,380.61 = 105,831.27 : x
2. Step 2: Convert to fraction form
   156,749.61/216,380.61 = 105,831.27/x
3. Step 3: Cross multiply
   156,749.61x = 216,380.61 × 105,831.27
4. Step 4: Simplify right side
   156,749.61x = 22,899,834,759.67
5. Step 5: Solve for x
   x = 22,899,834,759.67/156,749.61
6. Step 6: Final answer
   x = 146,091.81