Finding the Fourth Proportional to 574,978.78, 793,475.94 and 316,864.98

Step by Step Solution

1. Step 1: Write the proportion equation
   574,978.78 : 793,475.94 = 316,864.98 : x
2. Step 2: Convert to fraction form
   574,978.78/793,475.94 = 316,864.98/x
3. Step 3: Cross multiply
   574,978.78x = 793,475.94 × 316,864.98
4. Step 4: Simplify right side
   574,978.78x = 251,424,737,858.58
5. Step 5: Solve for x
   x = 251,424,737,858.58/574,978.78
6. Step 6: Final answer
   x = 437,276.55