Finding the Fourth Proportional to 156,354.55, 215,843.67 and 104,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,354.55 : 215,843.67 = 104,760.50 : x
2. Step 2: Convert to fraction form
   156,354.55/215,843.67 = 104,760.50/x
3. Step 3: Cross multiply
   156,354.55x = 215,843.67 × 104,760.50
4. Step 4: Simplify right side
   156,354.55x = 22,611,889,711.82
5. Step 5: Solve for x
   x = 22,611,889,711.82/156,354.55
6. Step 6: Final answer
   x = 144,619.33