Finding the Fourth Proportional to 65,401.83, 90,257.49 and 38,545.47

Step by Step Solution

1. Step 1: Write the proportion equation
   65,401.83 : 90,257.49 = 38,545.47 : x
2. Step 2: Convert to fraction form
   65,401.83/90,257.49 = 38,545.47/x
3. Step 3: Cross multiply
   65,401.83x = 90,257.49 × 38,545.47
4. Step 4: Simplify right side
   65,401.83x = 3,479,017,373.07
5. Step 5: Solve for x
   x = 3,479,017,373.07/65,401.83
6. Step 6: Final answer
   x = 53,194.50