Finding the Fourth Proportional to 57,128.61, 78,795 and 36,969.94

Step by Step Solution

1. Step 1: Write the proportion equation
   57,128.61 : 78,795 = 36,969.94 : x
2. Step 2: Convert to fraction form
   57,128.61/78,795 = 36,969.94/x
3. Step 3: Cross multiply
   57,128.61x = 78,795 × 36,969.94
4. Step 4: Simplify right side
   57,128.61x = 2,913,046,422.30
5. Step 5: Solve for x
   x = 2,913,046,422.30/57,128.61
6. Step 6: Final answer
   x = 50,991.03