Finding the Fourth Proportional to 50,926.60, 76,362.72 and 17,638.12

Step by Step Solution

1. Step 1: Write the proportion equation
   50,926.60 : 76,362.72 = 17,638.12 : x
2. Step 2: Convert to fraction form
   50,926.60/76,362.72 = 17,638.12/x
3. Step 3: Cross multiply
   50,926.60x = 76,362.72 × 17,638.12
4. Step 4: Simplify right side
   50,926.60x = 1,346,894,818.89
5. Step 5: Solve for x
   x = 1,346,894,818.89/50,926.60
6. Step 6: Final answer
   x = 26,447.77