Finding the Fourth Proportional to 9,927.38, 13,699.80 and 5,451.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,927.38 : 13,699.80 = 5,451.42 : x
2. Step 2: Convert to fraction form
   9,927.38/13,699.80 = 5,451.42/x
3. Step 3: Cross multiply
   9,927.38x = 13,699.80 × 5,451.42
4. Step 4: Simplify right side
   9,927.38x = 74,683,363.72
5. Step 5: Solve for x
   x = 74,683,363.72/9,927.38
6. Step 6: Final answer
   x = 7,522.97