Finding the Fourth Proportional to 9,882.69, 13,637.79 and 5,406.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,882.69 : 13,637.79 = 5,406.32 : x
2. Step 2: Convert to fraction form
   9,882.69/13,637.79 = 5,406.32/x
3. Step 3: Cross multiply
   9,882.69x = 13,637.79 × 5,406.32
4. Step 4: Simplify right side
   9,882.69x = 73,730,188.64
5. Step 5: Solve for x
   x = 73,730,188.64/9,882.69
6. Step 6: Final answer
   x = 7,460.54