Finding the Fourth Proportional to 65,356.32, 90,176 and 38,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,356.32 : 90,176 = 38,496.72 : x
2. Step 2: Convert to fraction form
   65,356.32/90,176 = 38,496.72/x
3. Step 3: Cross multiply
   65,356.32x = 90,176 × 38,496.72
4. Step 4: Simplify right side
   65,356.32x = 3,471,480,222.72
5. Step 5: Solve for x
   x = 3,471,480,222.72/65,356.32
6. Step 6: Final answer
   x = 53,116.21