Finding the Fourth Proportional to 65,962.35, 91,023.55 and 42,086.39

Step by Step Solution

1. Step 1: Write the proportion equation
   65,962.35 : 91,023.55 = 42,086.39 : x
2. Step 2: Convert to fraction form
   65,962.35/91,023.55 = 42,086.39/x
3. Step 3: Cross multiply
   65,962.35x = 91,023.55 × 42,086.39
4. Step 4: Simplify right side
   65,962.35x = 3,830,852,064.15
5. Step 5: Solve for x
   x = 3,830,852,064.15/65,962.35
6. Step 6: Final answer
   x = 58,076.34