Finding the Fourth Proportional to 250,074.29, 375,150.50 and 81,555.42

Step by Step Solution

1. Step 1: Write the proportion equation
   250,074.29 : 375,150.50 = 81,555.42 : x
2. Step 2: Convert to fraction form
   250,074.29/375,150.50 = 81,555.42/x
3. Step 3: Cross multiply
   250,074.29x = 375,150.50 × 81,555.42
4. Step 4: Simplify right side
   250,074.29x = 30,595,557,666.21
5. Step 5: Solve for x
   x = 30,595,557,666.21/250,074.29
6. Step 6: Final answer
   x = 122,345.88