Finding the Fourth Proportional to 9,881.19, 13,635.72 and 5,404.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,881.19 : 13,635.72 = 5,404.82 : x
2. Step 2: Convert to fraction form
   9,881.19/13,635.72 = 5,404.82/x
3. Step 3: Cross multiply
   9,881.19x = 13,635.72 × 5,404.82
4. Step 4: Simplify right side
   9,881.19x = 73,698,543.99
5. Step 5: Solve for x
   x = 73,698,543.99/9,881.19
6. Step 6: Final answer
   x = 7,458.47