Finding the Fourth Proportional to 463,004.72, 638,978.20 and 259,074.98

Step by Step Solution

1. Step 1: Write the proportion equation
   463,004.72 : 638,978.20 = 259,074.98 : x
2. Step 2: Convert to fraction form
   463,004.72/638,978.20 = 259,074.98/x
3. Step 3: Cross multiply
   463,004.72x = 638,978.20 × 259,074.98
4. Step 4: Simplify right side
   463,004.72x = 165,543,264,385.44
5. Step 5: Solve for x
   x = 165,543,264,385.44/463,004.72
6. Step 6: Final answer
   x = 357,541.20