Finding the Fourth Proportional to 42,874.25, 64,311.41 and 17,900.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,874.25 : 64,311.41 = 17,900.69 : x
2. Step 2: Convert to fraction form
   42,874.25/64,311.41 = 17,900.69/x
3. Step 3: Cross multiply
   42,874.25x = 64,311.41 × 17,900.69
4. Step 4: Simplify right side
   42,874.25x = 1,151,218,337.07
5. Step 5: Solve for x
   x = 1,151,218,337.07/42,874.25
6. Step 6: Final answer
   x = 26,851.04