Finding the Fourth Proportional to 36,717.83, 55,078.83 and 10,420.50

Step by Step Solution

1. Step 1: Write the proportion equation
   36,717.83 : 55,078.83 = 10,420.50 : x
2. Step 2: Convert to fraction form
   36,717.83/55,078.83 = 10,420.50/x
3. Step 3: Cross multiply
   36,717.83x = 55,078.83 × 10,420.50
4. Step 4: Simplify right side
   36,717.83x = 573,948,948.02
5. Step 5: Solve for x
   x = 573,948,948.02/36,717.83
6. Step 6: Final answer
   x = 15,631.34