Finding the Fourth Proportional to 9,901.35, 13,663.82 and 5,425.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,901.35 : 13,663.82 = 5,425.38 : x
2. Step 2: Convert to fraction form
   9,901.35/13,663.82 = 5,425.38/x
3. Step 3: Cross multiply
   9,901.35x = 13,663.82 × 5,425.38
4. Step 4: Simplify right side
   9,901.35x = 74,131,429.32
5. Step 5: Solve for x
   x = 74,131,429.32/9,901.35
6. Step 6: Final answer
   x = 7,487.00