Finding the Fourth Proportional to 51,008.53, 70,380.23 and 30,864.91

Step by Step Solution

1. Step 1: Write the proportion equation
   51,008.53 : 70,380.23 = 30,864.91 : x
2. Step 2: Convert to fraction form
   51,008.53/70,380.23 = 30,864.91/x
3. Step 3: Cross multiply
   51,008.53x = 70,380.23 × 30,864.91
4. Step 4: Simplify right side
   51,008.53x = 2,172,279,464.73
5. Step 5: Solve for x
   x = 2,172,279,464.73/51,008.53
6. Step 6: Final answer
   x = 42,586.59