Finding the Fourth Proportional to 134,569.72, 185,697.30 and 80,857

Step by Step Solution

1. Step 1: Write the proportion equation
   134,569.72 : 185,697.30 = 80,857 : x
2. Step 2: Convert to fraction form
   134,569.72/185,697.30 = 80,857/x
3. Step 3: Cross multiply
   134,569.72x = 185,697.30 × 80,857
4. Step 4: Simplify right side
   134,569.72x = 15,014,926,586.10
5. Step 5: Solve for x
   x = 15,014,926,586.10/134,569.72
6. Step 6: Final answer
   x = 111,577.30