Finding the Fourth Proportional to 115,025.74, 158,721.72 and 64,026.25

Step by Step Solution

1. Step 1: Write the proportion equation
   115,025.74 : 158,721.72 = 64,026.25 : x
2. Step 2: Convert to fraction form
   115,025.74/158,721.72 = 64,026.25/x
3. Step 3: Cross multiply
   115,025.74x = 158,721.72 × 64,026.25
4. Step 4: Simplify right side
   115,025.74x = 10,162,356,525.15
5. Step 5: Solve for x
   x = 10,162,356,525.15/115,025.74
6. Step 6: Final answer
   x = 88,348.54