Finding the Fourth Proportional to 162,191.20, 243,293.43 and 55,648.43

Step by Step Solution

1. Step 1: Write the proportion equation
   162,191.20 : 243,293.43 = 55,648.43 : x
2. Step 2: Convert to fraction form
   162,191.20/243,293.43 = 55,648.43/x
3. Step 3: Cross multiply
   162,191.20x = 243,293.43 × 55,648.43
4. Step 4: Simplify right side
   162,191.20x = 13,538,895,914.11
5. Step 5: Solve for x
   x = 13,538,895,914.11/162,191.20
6. Step 6: Final answer
   x = 83,474.91