Finding the Fourth Proportional to 65,960.29, 91,045.88 and 42,086.92

Step by Step Solution

1. Step 1: Write the proportion equation
   65,960.29 : 91,045.88 = 42,086.92 : x
2. Step 2: Convert to fraction form
   65,960.29/91,045.88 = 42,086.92/x
3. Step 3: Cross multiply
   65,960.29x = 91,045.88 × 42,086.92
4. Step 4: Simplify right side
   65,960.29x = 3,831,840,667.89
5. Step 5: Solve for x
   x = 3,831,840,667.89/65,960.29
6. Step 6: Final answer
   x = 58,093.14