Finding the Fourth Proportional to 7,543.94, 10,407.78 and 5,559.23

Step by Step Solution

1. Step 1: Write the proportion equation
   7,543.94 : 10,407.78 = 5,559.23 : x
2. Step 2: Convert to fraction form
   7,543.94/10,407.78 = 5,559.23/x
3. Step 3: Cross multiply
   7,543.94x = 10,407.78 × 5,559.23
4. Step 4: Simplify right side
   7,543.94x = 57,859,242.81
5. Step 5: Solve for x
   x = 57,859,242.81/7,543.94
6. Step 6: Final answer
   x = 7,669.63