Finding the Fourth Proportional to 172,956.29, 259,442.18 and 53,004.56

Step by Step Solution

1. Step 1: Write the proportion equation
   172,956.29 : 259,442.18 = 53,004.56 : x
2. Step 2: Convert to fraction form
   172,956.29/259,442.18 = 53,004.56/x
3. Step 3: Cross multiply
   172,956.29x = 259,442.18 × 53,004.56
4. Step 4: Simplify right side
   172,956.29x = 13,751,618,331.32
5. Step 5: Solve for x
   x = 13,751,618,331.32/172,956.29
6. Step 6: Final answer
   x = 79,509.21