Finding the Fourth Proportional to 109,200.74, 163,802.03 and 30,321.12

Step by Step Solution

1. Step 1: Write the proportion equation
   109,200.74 : 163,802.03 = 30,321.12 : x
2. Step 2: Convert to fraction form
   109,200.74/163,802.03 = 30,321.12/x
3. Step 3: Cross multiply
   109,200.74x = 163,802.03 × 30,321.12
4. Step 4: Simplify right side
   109,200.74x = 4,966,661,007.87
5. Step 5: Solve for x
   x = 4,966,661,007.87/109,200.74
6. Step 6: Final answer
   x = 45,481.94