Finding the Fourth Proportional to 66,151.78, 91,289.63 and 35,936.86

Step by Step Solution

1. Step 1: Write the proportion equation
   66,151.78 : 91,289.63 = 35,936.86 : x
2. Step 2: Convert to fraction form
   66,151.78/91,289.63 = 35,936.86/x
3. Step 3: Cross multiply
   66,151.78x = 91,289.63 × 35,936.86
4. Step 4: Simplify right side
   66,151.78x = 3,280,662,196.31
5. Step 5: Solve for x
   x = 3,280,662,196.31/66,151.78
6. Step 6: Final answer
   x = 49,592.95