Finding the Fourth Proportional to 10,058.50, 15,089.91 and 3,902.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,058.50 : 15,089.91 = 3,902.50 : x
2. Step 2: Convert to fraction form
   10,058.50/15,089.91 = 3,902.50/x
3. Step 3: Cross multiply
   10,058.50x = 15,089.91 × 3,902.50
4. Step 4: Simplify right side
   10,058.50x = 58,888,373.78
5. Step 5: Solve for x
   x = 58,888,373.78/10,058.50
6. Step 6: Final answer
   x = 5,854.59