Finding the Fourth Proportional to 12,002.82, 18,002.14 and 5,427.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.82 : 18,002.14 = 5,427.48 : x
2. Step 2: Convert to fraction form
   12,002.82/18,002.14 = 5,427.48/x
3. Step 3: Cross multiply
   12,002.82x = 18,002.14 × 5,427.48
4. Step 4: Simplify right side
   12,002.82x = 97,706,254.81
5. Step 5: Solve for x
   x = 97,706,254.81/12,002.82
6. Step 6: Final answer
   x = 8,140.27