Finding the Fourth Proportional to 10,058.72, 15,005.41 and 8,588.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,058.72 : 15,005.41 = 8,588.57 : x
2. Step 2: Convert to fraction form
   10,058.72/15,005.41 = 8,588.57/x
3. Step 3: Cross multiply
   10,058.72x = 15,005.41 × 8,588.57
4. Step 4: Simplify right side
   10,058.72x = 128,875,014.16
5. Step 5: Solve for x
   x = 128,875,014.16/10,058.72
6. Step 6: Final answer
   x = 12,812.27