Finding the Fourth Proportional to 30,541.61, 42,155.78 and 18,604.83

Step by Step Solution

1. Step 1: Write the proportion equation
   30,541.61 : 42,155.78 = 18,604.83 : x
2. Step 2: Convert to fraction form
   30,541.61/42,155.78 = 18,604.83/x
3. Step 3: Cross multiply
   30,541.61x = 42,155.78 × 18,604.83
4. Step 4: Simplify right side
   30,541.61x = 784,301,027.39
5. Step 5: Solve for x
   x = 784,301,027.39/30,541.61
6. Step 6: Final answer
   x = 25,679.76