Finding the Fourth Proportional to 65,314.42, 90,152.52 and 38,472.40

Step by Step Solution

1. Step 1: Write the proportion equation
   65,314.42 : 90,152.52 = 38,472.40 : x
2. Step 2: Convert to fraction form
   65,314.42/90,152.52 = 38,472.40/x
3. Step 3: Cross multiply
   65,314.42x = 90,152.52 × 38,472.40
4. Step 4: Simplify right side
   65,314.42x = 3,468,383,810.45
5. Step 5: Solve for x
   x = 3,468,383,810.45/65,314.42
6. Step 6: Final answer
   x = 53,102.88