Finding the Fourth Proportional to 66,633.42, 91,945.22 and 42,792.38

Step by Step Solution

1. Step 1: Write the proportion equation
   66,633.42 : 91,945.22 = 42,792.38 : x
2. Step 2: Convert to fraction form
   66,633.42/91,945.22 = 42,792.38/x
3. Step 3: Cross multiply
   66,633.42x = 91,945.22 × 42,792.38
4. Step 4: Simplify right side
   66,633.42x = 3,934,554,793.42
5. Step 5: Solve for x
   x = 3,934,554,793.42/66,633.42
6. Step 6: Final answer
   x = 59,047.77