Finding the Fourth Proportional to 10,302.86, 14,217.89 and 5,587.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,302.86 : 14,217.89 = 5,587.13 : x
2. Step 2: Convert to fraction form
   10,302.86/14,217.89 = 5,587.13/x
3. Step 3: Cross multiply
   10,302.86x = 14,217.89 × 5,587.13
4. Step 4: Simplify right side
   10,302.86x = 79,437,100.73
5. Step 5: Solve for x
   x = 79,437,100.73/10,302.86
6. Step 6: Final answer
   x = 7,710.20