Finding the Fourth Proportional to 57,951.86, 86,983.83 and 27,987.10

Step by Step Solution

1. Step 1: Write the proportion equation
   57,951.86 : 86,983.83 = 27,987.10 : x
2. Step 2: Convert to fraction form
   57,951.86/86,983.83 = 27,987.10/x
3. Step 3: Cross multiply
   57,951.86x = 86,983.83 × 27,987.10
4. Step 4: Simplify right side
   57,951.86x = 2,434,424,931.13
5. Step 5: Solve for x
   x = 2,434,424,931.13/57,951.86
6. Step 6: Final answer
   x = 42,007.71