Finding the Fourth Proportional to 30,180.79, 45,256.00 and 10,454.05

Step by Step Solution

1. Step 1: Write the proportion equation
   30,180.79 : 45,256.00 = 10,454.05 : x
2. Step 2: Convert to fraction form
   30,180.79/45,256.00 = 10,454.05/x
3. Step 3: Cross multiply
   30,180.79x = 45,256.00 × 10,454.05
4. Step 4: Simplify right side
   30,180.79x = 473,108,434.53
5. Step 5: Solve for x
   x = 473,108,434.53/30,180.79
6. Step 6: Final answer
   x = 15,675.81