Finding the Fourth Proportional to 411,118.24, 616,801.56 and 195,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   411,118.24 : 616,801.56 = 195,142.72 : x
2. Step 2: Convert to fraction form
   411,118.24/616,801.56 = 195,142.72/x
3. Step 3: Cross multiply
   411,118.24x = 616,801.56 × 195,142.72
4. Step 4: Simplify right side
   411,118.24x = 120,364,334,118.64
5. Step 5: Solve for x
   x = 120,364,334,118.64/411,118.24
6. Step 6: Final answer
   x = 292,773.03