Finding the Fourth Proportional to 42,771.67, 64,109.70 and 17,794.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,771.67 : 64,109.70 = 17,794.72 : x
2. Step 2: Convert to fraction form
   42,771.67/64,109.70 = 17,794.72/x
3. Step 3: Cross multiply
   42,771.67x = 64,109.70 × 17,794.72
4. Step 4: Simplify right side
   42,771.67x = 1,140,814,160.78
5. Step 5: Solve for x
   x = 1,140,814,160.78/42,771.67
6. Step 6: Final answer
   x = 26,672.19