Finding the Fourth Proportional to 578,498.52, 867,415.56 and 308,293.98

Step by Step Solution

1. Step 1: Write the proportion equation
   578,498.52 : 867,415.56 = 308,293.98 : x
2. Step 2: Convert to fraction form
   578,498.52/867,415.56 = 308,293.98/x
3. Step 3: Cross multiply
   578,498.52x = 867,415.56 × 308,293.98
4. Step 4: Simplify right side
   578,498.52x = 267,418,995,306.33
5. Step 5: Solve for x
   x = 267,418,995,306.33/578,498.52
6. Step 6: Final answer
   x = 462,263.92