Finding the Fourth Proportional to 9,881.22, 13,635.89 and 5,404.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,881.22 : 13,635.89 = 5,404.96 : x
2. Step 2: Convert to fraction form
   9,881.22/13,635.89 = 5,404.96/x
3. Step 3: Cross multiply
   9,881.22x = 13,635.89 × 5,404.96
4. Step 4: Simplify right side
   9,881.22x = 73,701,440.01
5. Step 5: Solve for x
   x = 73,701,440.01/9,881.22
6. Step 6: Final answer
   x = 7,458.74