Finding the Fourth Proportional to 566,796, 782,178.56 and 312,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   566,796 : 782,178.56 = 312,146.72 : x
2. Step 2: Convert to fraction form
   566,796/782,178.56 = 312,146.72/x
3. Step 3: Cross multiply
   566,796x = 782,178.56 × 312,146.72
4. Step 4: Simplify right side
   566,796x = 244,154,471,958.32
5. Step 5: Solve for x
   x = 244,154,471,958.32/566,796
6. Step 6: Final answer
   x = 430,762.52