Finding the Fourth Proportional to 156,757.08, 216,390.83 and 105,838.71

Step by Step Solution

1. Step 1: Write the proportion equation
   156,757.08 : 216,390.83 = 105,838.71 : x
2. Step 2: Convert to fraction form
   156,757.08/216,390.83 = 105,838.71/x
3. Step 3: Cross multiply
   156,757.08x = 216,390.83 × 105,838.71
4. Step 4: Simplify right side
   156,757.08x = 22,902,527,124.40
5. Step 5: Solve for x
   x = 22,902,527,124.40/156,757.08
6. Step 6: Final answer
   x = 146,102.02