Finding the Fourth Proportional to 113,049.10, 156,023.90 and 67,728.98

Step by Step Solution

1. Step 1: Write the proportion equation
   113,049.10 : 156,023.90 = 67,728.98 : x
2. Step 2: Convert to fraction form
   113,049.10/156,023.90 = 67,728.98/x
3. Step 3: Cross multiply
   113,049.10x = 156,023.90 × 67,728.98
4. Step 4: Simplify right side
   113,049.10x = 10,567,339,602.62
5. Step 5: Solve for x
   x = 10,567,339,602.62/113,049.10
6. Step 6: Final answer
   x = 93,475.66