Finding the Fourth Proportional to 12,045.50, 18,062.31 and 5,023.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,045.50 : 18,062.31 = 5,023.40 : x
2. Step 2: Convert to fraction form
   12,045.50/18,062.31 = 5,023.40/x
3. Step 3: Cross multiply
   12,045.50x = 18,062.31 × 5,023.40
4. Step 4: Simplify right side
   12,045.50x = 90,734,117.74
5. Step 5: Solve for x
   x = 90,734,117.74/12,045.50
6. Step 6: Final answer
   x = 7,532.62