Finding the Fourth Proportional to 9,672.52, 13,347.80 and 5,480.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,672.52 : 13,347.80 = 5,480.76 : x
2. Step 2: Convert to fraction form
   9,672.52/13,347.80 = 5,480.76/x
3. Step 3: Cross multiply
   9,672.52x = 13,347.80 × 5,480.76
4. Step 4: Simplify right side
   9,672.52x = 73,156,088.33
5. Step 5: Solve for x
   x = 73,156,088.33/9,672.52
6. Step 6: Final answer
   x = 7,563.29