Finding the Fourth Proportional to 115,022.50, 158,714.71 and 64,028.15

Step by Step Solution

1. Step 1: Write the proportion equation
   115,022.50 : 158,714.71 = 64,028.15 : x
2. Step 2: Convert to fraction form
   115,022.50/158,714.71 = 64,028.15/x
3. Step 3: Cross multiply
   115,022.50x = 158,714.71 × 64,028.15
4. Step 4: Simplify right side
   115,022.50x = 10,162,209,259.09
5. Step 5: Solve for x
   x = 10,162,209,259.09/115,022.50
6. Step 6: Final answer
   x = 88,349.75