Finding the Fourth Proportional to 42,697.57, 64,002.60 and 17,752.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,697.57 : 64,002.60 = 17,752.09 : x
2. Step 2: Convert to fraction form
   42,697.57/64,002.60 = 17,752.09/x
3. Step 3: Cross multiply
   42,697.57x = 64,002.60 × 17,752.09
4. Step 4: Simplify right side
   42,697.57x = 1,136,179,915.43
5. Step 5: Solve for x
   x = 1,136,179,915.43/42,697.57
6. Step 6: Final answer
   x = 26,609.94