Finding the Fourth Proportional to 65,146.32, 89,886.24 and 38,286.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,146.32 : 89,886.24 = 38,286.72 : x
2. Step 2: Convert to fraction form
   65,146.32/89,886.24 = 38,286.72/x
3. Step 3: Cross multiply
   65,146.32x = 89,886.24 × 38,286.72
4. Step 4: Simplify right side
   65,146.32x = 3,441,449,302.73
5. Step 5: Solve for x
   x = 3,441,449,302.73/65,146.32
6. Step 6: Final answer
   x = 52,826.46