Finding the Fourth Proportional to 171,410.86, 257,147.61 and 53,074.18

Step by Step Solution

1. Step 1: Write the proportion equation
   171,410.86 : 257,147.61 = 53,074.18 : x
2. Step 2: Convert to fraction form
   171,410.86/257,147.61 = 53,074.18/x
3. Step 3: Cross multiply
   171,410.86x = 257,147.61 × 53,074.18
4. Step 4: Simplify right side
   171,410.86x = 13,647,898,539.71
5. Step 5: Solve for x
   x = 13,647,898,539.71/171,410.86
6. Step 6: Final answer
   x = 79,620.97