Finding the Fourth Proportional to 10,045.55, 13,862.72 and 5,569.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,045.55 : 13,862.72 = 5,569.20 : x
2. Step 2: Convert to fraction form
   10,045.55/13,862.72 = 5,569.20/x
3. Step 3: Cross multiply
   10,045.55x = 13,862.72 × 5,569.20
4. Step 4: Simplify right side
   10,045.55x = 77,204,274.15
5. Step 5: Solve for x
   x = 77,204,274.15/10,045.55
6. Step 6: Final answer
   x = 7,685.42