Finding the Fourth Proportional to 42,603.30, 63,922.50 and 17,648.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42,603.30 : 63,922.50 = 17,648.37 : x
2. Step 2: Convert to fraction form
   42,603.30/63,922.50 = 17,648.37/x
3. Step 3: Cross multiply
   42,603.30x = 63,922.50 × 17,648.37
4. Step 4: Simplify right side
   42,603.30x = 1,128,127,931.33
5. Step 5: Solve for x
   x = 1,128,127,931.33/42,603.30
6. Step 6: Final answer
   x = 26,479.83