Finding the Fourth Proportional to 10,042.20, 13,859.06 and 5,567.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,042.20 : 13,859.06 = 5,567.36 : x
2. Step 2: Convert to fraction form
   10,042.20/13,859.06 = 5,567.36/x
3. Step 3: Cross multiply
   10,042.20x = 13,859.06 × 5,567.36
4. Step 4: Simplify right side
   10,042.20x = 77,158,279.15
5. Step 5: Solve for x
   x = 77,158,279.15/10,042.20
6. Step 6: Final answer
   x = 7,683.40