Finding the Fourth Proportional to 65,499.08, 90,384.78 and 38,650

Step by Step Solution

1. Step 1: Write the proportion equation
   65,499.08 : 90,384.78 = 38,650 : x
2. Step 2: Convert to fraction form
   65,499.08/90,384.78 = 38,650/x
3. Step 3: Cross multiply
   65,499.08x = 90,384.78 × 38,650
4. Step 4: Simplify right side
   65,499.08x = 3,493,371,747
5. Step 5: Solve for x
   x = 3,493,371,747/65,499.08
6. Step 6: Final answer
   x = 53,334.67