Finding the Fourth Proportional to 109,085.10, 163,627.05 and 30,198.78

Step by Step Solution

1. Step 1: Write the proportion equation
   109,085.10 : 163,627.05 = 30,198.78 : x
2. Step 2: Convert to fraction form
   109,085.10/163,627.05 = 30,198.78/x
3. Step 3: Cross multiply
   109,085.10x = 163,627.05 × 30,198.78
4. Step 4: Simplify right side
   109,085.10x = 4,941,337,285.00
5. Step 5: Solve for x
   x = 4,941,337,285.00/109,085.10
6. Step 6: Final answer
   x = 45,298.00