Finding the Fourth Proportional to 171,080.42, 256,604.12 and 52,719.98

Step by Step Solution

1. Step 1: Write the proportion equation
   171,080.42 : 256,604.12 = 52,719.98 : x
2. Step 2: Convert to fraction form
   171,080.42/256,604.12 = 52,719.98/x
3. Step 3: Cross multiply
   171,080.42x = 256,604.12 × 52,719.98
4. Step 4: Simplify right side
   171,080.42x = 13,528,164,074.32
5. Step 5: Solve for x
   x = 13,528,164,074.32/171,080.42
6. Step 6: Final answer
   x = 79,074.88