Finding the Fourth Proportional to 10,127.12, 13,973.31 and 7,442.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,127.12 : 13,973.31 = 7,442.55 : x
2. Step 2: Convert to fraction form
   10,127.12/13,973.31 = 7,442.55/x
3. Step 3: Cross multiply
   10,127.12x = 13,973.31 × 7,442.55
4. Step 4: Simplify right side
   10,127.12x = 103,997,058.34
5. Step 5: Solve for x
   x = 103,997,058.34/10,127.12
6. Step 6: Final answer
   x = 10,269.17