Finding the Fourth Proportional to 65,253.69, 90,048.24 and 38,390.04

Step by Step Solution

1. Step 1: Write the proportion equation
   65,253.69 : 90,048.24 = 38,390.04 : x
2. Step 2: Convert to fraction form
   65,253.69/90,048.24 = 38,390.04/x
3. Step 3: Cross multiply
   65,253.69x = 90,048.24 × 38,390.04
4. Step 4: Simplify right side
   65,253.69x = 3,456,955,535.53
5. Step 5: Solve for x
   x = 3,456,955,535.53/65,253.69
6. Step 6: Final answer
   x = 52,977.17