Finding the Fourth Proportional to 64,900.10, 89,545.20 and 38,028.17

Step by Step Solution

1. Step 1: Write the proportion equation
   64,900.10 : 89,545.20 = 38,028.17 : x
2. Step 2: Convert to fraction form
   64,900.10/89,545.20 = 38,028.17/x
3. Step 3: Cross multiply
   64,900.10x = 89,545.20 × 38,028.17
4. Step 4: Simplify right side
   64,900.10x = 3,405,239,640.56
5. Step 5: Solve for x
   x = 3,405,239,640.56/64,900.10
6. Step 6: Final answer
   x = 52,468.95