Finding the Fourth Proportional to 65,385.32, 90,265.05 and 46,280.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,385.32 : 90,265.05 = 46,280.05 : x
2. Step 2: Convert to fraction form
   65,385.32/90,265.05 = 46,280.05/x
3. Step 3: Cross multiply
   65,385.32x = 90,265.05 × 46,280.05
4. Step 4: Simplify right side
   65,385.32x = 4,177,470,801.59
5. Step 5: Solve for x
   x = 4,177,470,801.59/65,385.32
6. Step 6: Final answer
   x = 63,890.05