Finding the Fourth Proportional to 243,754.42, 365,557.12 and 85,945.98

Step by Step Solution

1. Step 1: Write the proportion equation
   243,754.42 : 365,557.12 = 85,945.98 : x
2. Step 2: Convert to fraction form
   243,754.42/365,557.12 = 85,945.98/x
3. Step 3: Cross multiply
   243,754.42x = 365,557.12 × 85,945.98
4. Step 4: Simplify right side
   243,754.42x = 31,418,164,924.38
5. Step 5: Solve for x
   x = 31,418,164,924.38/243,754.42
6. Step 6: Final answer
   x = 128,892.70