Finding the Fourth Proportional to 109,141.43, 163,449.50 and 73,974.47

Step by Step Solution

1. Step 1: Write the proportion equation
   109,141.43 : 163,449.50 = 73,974.47 : x
2. Step 2: Convert to fraction form
   109,141.43/163,449.50 = 73,974.47/x
3. Step 3: Cross multiply
   109,141.43x = 163,449.50 × 73,974.47
4. Step 4: Simplify right side
   109,141.43x = 12,091,088,947.15
5. Step 5: Solve for x
   x = 12,091,088,947.15/109,141.43
6. Step 6: Final answer
   x = 110,783.68