Finding the Fourth Proportional to 113,288.52, 156,320.64 and 65,546.31

Step by Step Solution

1. Step 1: Write the proportion equation
   113,288.52 : 156,320.64 = 65,546.31 : x
2. Step 2: Convert to fraction form
   113,288.52/156,320.64 = 65,546.31/x
3. Step 3: Cross multiply
   113,288.52x = 156,320.64 × 65,546.31
4. Step 4: Simplify right side
   113,288.52x = 10,246,241,128.84
5. Step 5: Solve for x
   x = 10,246,241,128.84/113,288.52
6. Step 6: Final answer
   x = 90,443.77