Finding the Fourth Proportional to 156,701.70, 235,182.15 and 72,591.30

Step by Step Solution

1. Step 1: Write the proportion equation
   156,701.70 : 235,182.15 = 72,591.30 : x
2. Step 2: Convert to fraction form
   156,701.70/235,182.15 = 72,591.30/x
3. Step 3: Cross multiply
   156,701.70x = 235,182.15 × 72,591.30
4. Step 4: Simplify right side
   156,701.70x = 17,072,178,005.30
5. Step 5: Solve for x
   x = 17,072,178,005.30/156,701.70
6. Step 6: Final answer
   x = 108,946.99