Finding the Fourth Proportional to 11,150.01, 15,386.88 and 6,434.19

Step by Step Solution

1. Step 1: Write the proportion equation
   11,150.01 : 15,386.88 = 6,434.19 : x
2. Step 2: Convert to fraction form
   11,150.01/15,386.88 = 6,434.19/x
3. Step 3: Cross multiply
   11,150.01x = 15,386.88 × 6,434.19
4. Step 4: Simplify right side
   11,150.01x = 99,002,109.43
5. Step 5: Solve for x
   x = 99,002,109.43/11,150.01
6. Step 6: Final answer
   x = 8,879.10