Finding the Fourth Proportional to 65,612.15, 90,498.11 and 43,797.42

Step by Step Solution

1. Step 1: Write the proportion equation
   65,612.15 : 90,498.11 = 43,797.42 : x
2. Step 2: Convert to fraction form
   65,612.15/90,498.11 = 43,797.42/x
3. Step 3: Cross multiply
   65,612.15x = 90,498.11 × 43,797.42
4. Step 4: Simplify right side
   65,612.15x = 3,963,583,513.89
5. Step 5: Solve for x
   x = 3,963,583,513.89/65,612.15
6. Step 6: Final answer
   x = 60,409.30