Finding the Fourth Proportional to 571,814.72, 786,786.72 and 469,463.12

Step by Step Solution

1. Step 1: Write the proportion equation
   571,814.72 : 786,786.72 = 469,463.12 : x
2. Step 2: Convert to fraction form
   571,814.72/786,786.72 = 469,463.12/x
3. Step 3: Cross multiply
   571,814.72x = 786,786.72 × 469,463.12
4. Step 4: Simplify right side
   571,814.72x = 369,367,348,345.77
5. Step 5: Solve for x
   x = 369,367,348,345.77/571,814.72
6. Step 6: Final answer
   x = 645,956.35