Finding the Fourth Proportional to 243,978.86, 365,823.72 and 75,449.30

Step by Step Solution

1. Step 1: Write the proportion equation
   243,978.86 : 365,823.72 = 75,449.30 : x
2. Step 2: Convert to fraction form
   243,978.86/365,823.72 = 75,449.30/x
3. Step 3: Cross multiply
   243,978.86x = 365,823.72 × 75,449.30
4. Step 4: Simplify right side
   243,978.86x = 27,601,143,597.40
5. Step 5: Solve for x
   x = 27,601,143,597.40/243,978.86
6. Step 6: Final answer
   x = 113,129.24