Finding the Fourth Proportional to 109,690.30, 164,426.10 and 50,422.60

Step by Step Solution

1. Step 1: Write the proportion equation
   109,690.30 : 164,426.10 = 50,422.60 : x
2. Step 2: Convert to fraction form
   109,690.30/164,426.10 = 50,422.60/x
3. Step 3: Cross multiply
   109,690.30x = 164,426.10 × 50,422.60
4. Step 4: Simplify right side
   109,690.30x = 8,290,791,469.86
5. Step 5: Solve for x
   x = 8,290,791,469.86/109,690.30
6. Step 6: Final answer
   x = 75,583.63