Finding the Fourth Proportional to 65,403, 90,232.86 and 42,755.01

Step by Step Solution

1. Step 1: Write the proportion equation
   65,403 : 90,232.86 = 42,755.01 : x
2. Step 2: Convert to fraction form
   65,403/90,232.86 = 42,755.01/x
3. Step 3: Cross multiply
   65,403x = 90,232.86 × 42,755.01
4. Step 4: Simplify right side
   65,403x = 3,857,906,831.63
5. Step 5: Solve for x
   x = 3,857,906,831.63/65,403
6. Step 6: Final answer
   x = 58,986.70