Finding the Fourth Proportional to 12,038.45, 18,061.31 and 5,021.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,038.45 : 18,061.31 = 5,021.82 : x
2. Step 2: Convert to fraction form
   12,038.45/18,061.31 = 5,021.82/x
3. Step 3: Cross multiply
   12,038.45x = 18,061.31 × 5,021.82
4. Step 4: Simplify right side
   12,038.45x = 90,700,660.34
5. Step 5: Solve for x
   x = 90,700,660.34/12,038.45
6. Step 6: Final answer
   x = 7,534.25