Finding the Fourth Proportional to 415,789.16, 573,788.56 and 224,802.10

Step by Step Solution

1. Step 1: Write the proportion equation
   415,789.16 : 573,788.56 = 224,802.10 : x
2. Step 2: Convert to fraction form
   415,789.16/573,788.56 = 224,802.10/x
3. Step 3: Cross multiply
   415,789.16x = 573,788.56 × 224,802.10
4. Step 4: Simplify right side
   415,789.16x = 128,988,869,251.02
5. Step 5: Solve for x
   x = 128,988,869,251.02/415,789.16
6. Step 6: Final answer
   x = 310,226.63