Finding the Fourth Proportional to 7,488.72, 10,335.02 and 4,132.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,488.72 : 10,335.02 = 4,132.20 : x
2. Step 2: Convert to fraction form
   7,488.72/10,335.02 = 4,132.20/x
3. Step 3: Cross multiply
   7,488.72x = 10,335.02 × 4,132.20
4. Step 4: Simplify right side
   7,488.72x = 42,706,369.64
5. Step 5: Solve for x
   x = 42,706,369.64/7,488.72
6. Step 6: Final answer
   x = 5,702.76