Finding the Fourth Proportional to 64,586.48, 89,097.72 and 39,392.24

Step by Step Solution

1. Step 1: Write the proportion equation
   64,586.48 : 89,097.72 = 39,392.24 : x
2. Step 2: Convert to fraction form
   64,586.48/89,097.72 = 39,392.24/x
3. Step 3: Cross multiply
   64,586.48x = 89,097.72 × 39,392.24
4. Step 4: Simplify right side
   64,586.48x = 3,509,758,769.69
5. Step 5: Solve for x
   x = 3,509,758,769.69/64,586.48
6. Step 6: Final answer
   x = 54,342.00