Finding the Fourth Proportional to 109,238.09, 163,690.20 and 73,567.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,238.09 : 163,690.20 = 73,567.50 : x
2. Step 2: Convert to fraction form
   109,238.09/163,690.20 = 73,567.50/x
3. Step 3: Cross multiply
   109,238.09x = 163,690.20 × 73,567.50
4. Step 4: Simplify right side
   109,238.09x = 12,042,278,788.50
5. Step 5: Solve for x
   x = 12,042,278,788.50/109,238.09
6. Step 6: Final answer
   x = 110,238.83