Finding the Fourth Proportional to 9,902.04, 13,664.88 and 5,425.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,902.04 : 13,664.88 = 5,425.53 : x
2. Step 2: Convert to fraction form
   9,902.04/13,664.88 = 5,425.53/x
3. Step 3: Cross multiply
   9,902.04x = 13,664.88 × 5,425.53
4. Step 4: Simplify right side
   9,902.04x = 74,139,216.39
5. Step 5: Solve for x
   x = 74,139,216.39/9,902.04
6. Step 6: Final answer
   x = 7,487.27