Finding the Fourth Proportional to 456,598.67, 630,063.25 and 309,123.54

Step by Step Solution

1. Step 1: Write the proportion equation
   456,598.67 : 630,063.25 = 309,123.54 : x
2. Step 2: Convert to fraction form
   456,598.67/630,063.25 = 309,123.54/x
3. Step 3: Cross multiply
   456,598.67x = 630,063.25 × 309,123.54
4. Step 4: Simplify right side
   456,598.67x = 194,767,381,019.00
5. Step 5: Solve for x
   x = 194,767,381,019.00/456,598.67
6. Step 6: Final answer
   x = 426,561.43