Finding the Fourth Proportional to 156,953.70, 235,560.15 and 72,843.30

Step by Step Solution

1. Step 1: Write the proportion equation
   156,953.70 : 235,560.15 = 72,843.30 : x
2. Step 2: Convert to fraction form
   156,953.70/235,560.15 = 72,843.30/x
3. Step 3: Cross multiply
   156,953.70x = 235,560.15 × 72,843.30
4. Step 4: Simplify right side
   156,953.70x = 17,158,978,674.50
5. Step 5: Solve for x
   x = 17,158,978,674.50/156,953.70
6. Step 6: Final answer
   x = 109,325.10