Finding the Fourth Proportional to 65,965.35, 91,027.68 and 42,089.39

Step by Step Solution

1. Step 1: Write the proportion equation
   65,965.35 : 91,027.68 = 42,089.39 : x
2. Step 2: Convert to fraction form
   65,965.35/91,027.68 = 42,089.39/x
3. Step 3: Cross multiply
   65,965.35x = 91,027.68 × 42,089.39
4. Step 4: Simplify right side
   65,965.35x = 3,831,299,069.18
5. Step 5: Solve for x
   x = 3,831,299,069.18/65,965.35
6. Step 6: Final answer
   x = 58,080.48