Finding the Fourth Proportional to 243,602.39, 365,320.31 and 123,613.07

Step by Step Solution

1. Step 1: Write the proportion equation
   243,602.39 : 365,320.31 = 123,613.07 : x
2. Step 2: Convert to fraction form
   243,602.39/365,320.31 = 123,613.07/x
3. Step 3: Cross multiply
   243,602.39x = 365,320.31 × 123,613.07
4. Step 4: Simplify right side
   243,602.39x = 45,158,362,607.78
5. Step 5: Solve for x
   x = 45,158,362,607.78/243,602.39
6. Step 6: Final answer
   x = 185,377.34