Finding the Fourth Proportional to 9,778.32, 13,499.33 and 7,551.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,778.32 : 13,499.33 = 7,551.72 : x
2. Step 2: Convert to fraction form
   9,778.32/13,499.33 = 7,551.72/x
3. Step 3: Cross multiply
   9,778.32x = 13,499.33 × 7,551.72
4. Step 4: Simplify right side
   9,778.32x = 101,943,122.59
5. Step 5: Solve for x
   x = 101,943,122.59/9,778.32
6. Step 6: Final answer
   x = 10,425.42