Finding the Fourth Proportional to 243,697.98, 365,430.72 and 142,524.54

Step by Step Solution

1. Step 1: Write the proportion equation
   243,697.98 : 365,430.72 = 142,524.54 : x
2. Step 2: Convert to fraction form
   243,697.98/365,430.72 = 142,524.54/x
3. Step 3: Cross multiply
   243,697.98x = 365,430.72 × 142,524.54
4. Step 4: Simplify right side
   243,697.98x = 52,082,845,269.87
5. Step 5: Solve for x
   x = 52,082,845,269.87/243,697.98
6. Step 6: Final answer
   x = 213,718.82