Finding the Fourth Proportional to 65,235.68, 89,963.24 and 42,567.42

Step by Step Solution

1. Step 1: Write the proportion equation
   65,235.68 : 89,963.24 = 42,567.42 : x
2. Step 2: Convert to fraction form
   65,235.68/89,963.24 = 42,567.42/x
3. Step 3: Cross multiply
   65,235.68x = 89,963.24 × 42,567.42
4. Step 4: Simplify right side
   65,235.68x = 3,829,503,021.64
5. Step 5: Solve for x
   x = 3,829,503,021.64/65,235.68
6. Step 6: Final answer
   x = 58,702.59