Finding the Fourth Proportional to 7,535.61, 10,398.72 and 4,178.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,535.61 : 10,398.72 = 4,178.22 : x
2. Step 2: Convert to fraction form
   7,535.61/10,398.72 = 4,178.22/x
3. Step 3: Cross multiply
   7,535.61x = 10,398.72 × 4,178.22
4. Step 4: Simplify right side
   7,535.61x = 43,448,139.88
5. Step 5: Solve for x
   x = 43,448,139.88/7,535.61
6. Step 6: Final answer
   x = 5,765.71