Finding the Fourth Proportional to 585,061.62, 807,380.70 and 316,789.62

Step by Step Solution

1. Step 1: Write the proportion equation
   585,061.62 : 807,380.70 = 316,789.62 : x
2. Step 2: Convert to fraction form
   585,061.62/807,380.70 = 316,789.62/x
3. Step 3: Cross multiply
   585,061.62x = 807,380.70 × 316,789.62
4. Step 4: Simplify right side
   585,061.62x = 255,769,825,148.33
5. Step 5: Solve for x
   x = 255,769,825,148.33/585,061.62
6. Step 6: Final answer
   x = 437,167.33