Finding the Fourth Proportional to 11,430.20, 17,131.59 and 5,886.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,430.20 : 17,131.59 = 5,886.15 : x
2. Step 2: Convert to fraction form
   11,430.20/17,131.59 = 5,886.15/x
3. Step 3: Cross multiply
   11,430.20x = 17,131.59 × 5,886.15
4. Step 4: Simplify right side
   11,430.20x = 100,839,108.48
5. Step 5: Solve for x
   x = 100,839,108.48/11,430.20
6. Step 6: Final answer
   x = 8,822.17