Finding the Fourth Proportional to 115,005.43, 158,712.15 and 64,014.92

Step by Step Solution

1. Step 1: Write the proportion equation
   115,005.43 : 158,712.15 = 64,014.92 : x
2. Step 2: Convert to fraction form
   115,005.43/158,712.15 = 64,014.92/x
3. Step 3: Cross multiply
   115,005.43x = 158,712.15 × 64,014.92
4. Step 4: Simplify right side
   115,005.43x = 10,159,945,400.03
5. Step 5: Solve for x
   x = 10,159,945,400.03/115,005.43
6. Step 6: Final answer
   x = 88,343.18