Finding the Fourth Proportional to 113,134.38, 156,116.34 and 65,390.82

Step by Step Solution

1. Step 1: Write the proportion equation
   113,134.38 : 156,116.34 = 65,390.82 : x
2. Step 2: Convert to fraction form
   113,134.38/156,116.34 = 65,390.82/x
3. Step 3: Cross multiply
   113,134.38x = 156,116.34 × 65,390.82
4. Step 4: Simplify right side
   113,134.38x = 10,208,575,488.00
5. Step 5: Solve for x
   x = 10,208,575,488.00/113,134.38
6. Step 6: Final answer
   x = 90,234.07