Finding the Fourth Proportional to 55,426.52, 83,139.21 and 13,873.52

Step by Step Solution

1. Step 1: Write the proportion equation
   55,426.52 : 83,139.21 = 13,873.52 : x
2. Step 2: Convert to fraction form
   55,426.52/83,139.21 = 13,873.52/x
3. Step 3: Cross multiply
   55,426.52x = 83,139.21 × 13,873.52
4. Step 4: Simplify right side
   55,426.52x = 1,153,433,492.72
5. Step 5: Solve for x
   x = 1,153,433,492.72/55,426.52
6. Step 6: Final answer
   x = 20,810.14