Finding the Fourth Proportional to 9,888.08, 13,645.55 and 5,411.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,888.08 : 13,645.55 = 5,411.82 : x
2. Step 2: Convert to fraction form
   9,888.08/13,645.55 = 5,411.82/x
3. Step 3: Cross multiply
   9,888.08x = 13,645.55 × 5,411.82
4. Step 4: Simplify right side
   9,888.08x = 73,847,304.81
5. Step 5: Solve for x
   x = 73,847,304.81/9,888.08
6. Step 6: Final answer
   x = 7,468.32