Finding the Fourth Proportional to 115,443.86, 159,311.02 and 64,457.46

Step by Step Solution

1. Step 1: Write the proportion equation
   115,443.86 : 159,311.02 = 64,457.46 : x
2. Step 2: Convert to fraction form
   115,443.86/159,311.02 = 64,457.46/x
3. Step 3: Cross multiply
   115,443.86x = 159,311.02 × 64,457.46
4. Step 4: Simplify right side
   115,443.86x = 10,268,783,376.92
5. Step 5: Solve for x
   x = 10,268,783,376.92/115,443.86
6. Step 6: Final answer
   x = 88,950.45