Finding the Fourth Proportional to 83,942.52, 115,896.49 and 64,527.02

Step by Step Solution

1. Step 1: Write the proportion equation
   83,942.52 : 115,896.49 = 64,527.02 : x
2. Step 2: Convert to fraction form
   83,942.52/115,896.49 = 64,527.02/x
3. Step 3: Cross multiply
   83,942.52x = 115,896.49 × 64,527.02
4. Step 4: Simplify right side
   83,942.52x = 7,478,454,805.52
5. Step 5: Solve for x
   x = 7,478,454,805.52/83,942.52
6. Step 6: Final answer
   x = 89,090.19