Finding the Fourth Proportional to 55,362, 83,043.76 and 18,426

Step by Step Solution

1. Step 1: Write the proportion equation
   55,362 : 83,043.76 = 18,426 : x
2. Step 2: Convert to fraction form
   55,362/83,043.76 = 18,426/x
3. Step 3: Cross multiply
   55,362x = 83,043.76 × 18,426
4. Step 4: Simplify right side
   55,362x = 1,530,164,321.76
5. Step 5: Solve for x
   x = 1,530,164,321.76/55,362
6. Step 6: Final answer
   x = 27,639.25