Finding the Fourth Proportional to 115,585.86, 159,500.43 and 65,275.14

Step by Step Solution

1. Step 1: Write the proportion equation
   115,585.86 : 159,500.43 = 65,275.14 : x
2. Step 2: Convert to fraction form
   115,585.86/159,500.43 = 65,275.14/x
3. Step 3: Cross multiply
   115,585.86x = 159,500.43 × 65,275.14
4. Step 4: Simplify right side
   115,585.86x = 10,411,412,898.31
5. Step 5: Solve for x
   x = 10,411,412,898.31/115,585.86
6. Step 6: Final answer
   x = 90,075.14