Finding the Fourth Proportional to 478,308.79, 660,041.17 and 297,016.82

Step by Step Solution

1. Step 1: Write the proportion equation
   478,308.79 : 660,041.17 = 297,016.82 : x
2. Step 2: Convert to fraction form
   478,308.79/660,041.17 = 297,016.82/x
3. Step 3: Cross multiply
   478,308.79x = 660,041.17 × 297,016.82
4. Step 4: Simplify right side
   478,308.79x = 196,043,325,339.73
5. Step 5: Solve for x
   x = 196,043,325,339.73/478,308.79
6. Step 6: Final answer
   x = 409,867.71