Finding the Fourth Proportional to 9,902.02, 13,664.82 and 5,425.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,902.02 : 13,664.82 = 5,425.73 : x
2. Step 2: Convert to fraction form
   9,902.02/13,664.82 = 5,425.73/x
3. Step 3: Cross multiply
   9,902.02x = 13,664.82 × 5,425.73
4. Step 4: Simplify right side
   9,902.02x = 74,141,623.82
5. Step 5: Solve for x
   x = 74,141,623.82/9,902.02
6. Step 6: Final answer
   x = 7,487.53