Finding the Fourth Proportional to 478,932.16, 660,892.61 and 264,067.61

Step by Step Solution

1. Step 1: Write the proportion equation
   478,932.16 : 660,892.61 = 264,067.61 : x
2. Step 2: Convert to fraction form
   478,932.16/660,892.61 = 264,067.61/x
3. Step 3: Cross multiply
   478,932.16x = 660,892.61 × 264,067.61
4. Step 4: Simplify right side
   478,932.16x = 174,520,328,417.72
5. Step 5: Solve for x
   x = 174,520,328,417.72/478,932.16
6. Step 6: Final answer
   x = 364,394.68