Finding the Fourth Proportional to 42,544.78, 63,782.30 and 17,602.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,544.78 : 63,782.30 = 17,602.72 : x
2. Step 2: Convert to fraction form
   42,544.78/63,782.30 = 17,602.72/x
3. Step 3: Cross multiply
   42,544.78x = 63,782.30 × 17,602.72
4. Step 4: Simplify right side
   42,544.78x = 1,122,741,852.41
5. Step 5: Solve for x
   x = 1,122,741,852.41/42,544.78
6. Step 6: Final answer
   x = 26,389.65