Finding the Fourth Proportional to 117,200.10, 161,724.56 and 65,507.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,200.10 : 161,724.56 = 65,507.52 : x
2. Step 2: Convert to fraction form
   117,200.10/161,724.56 = 65,507.52/x
3. Step 3: Cross multiply
   117,200.10x = 161,724.56 × 65,507.52
4. Step 4: Simplify right side
   117,200.10x = 10,594,174,521.15
5. Step 5: Solve for x
   x = 10,594,174,521.15/117,200.10
6. Step 6: Final answer
   x = 90,393.90