Finding the Fourth Proportional to 65,145.94, 89,903.62 and 38,288.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,145.94 : 89,903.62 = 38,288.06 : x
2. Step 2: Convert to fraction form
   65,145.94/89,903.62 = 38,288.06/x
3. Step 3: Cross multiply
   65,145.94x = 89,903.62 × 38,288.06
4. Step 4: Simplify right side
   65,145.94x = 3,442,235,196.78
5. Step 5: Solve for x
   x = 3,442,235,196.78/65,145.94
6. Step 6: Final answer
   x = 52,838.83