Finding the Fourth Proportional to 9,006.71, 12,428.74 and 5,028.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,006.71 : 12,428.74 = 5,028.07 : x
2. Step 2: Convert to fraction form
   9,006.71/12,428.74 = 5,028.07/x
3. Step 3: Cross multiply
   9,006.71x = 12,428.74 × 5,028.07
4. Step 4: Simplify right side
   9,006.71x = 62,492,608.20
5. Step 5: Solve for x
   x = 62,492,608.20/9,006.71
6. Step 6: Final answer
   x = 6,938.45