Finding the Fourth Proportional to 39,630.72, 59,429.88 and 17,142.69

Step by Step Solution

1. Step 1: Write the proportion equation
   39,630.72 : 59,429.88 = 17,142.69 : x
2. Step 2: Convert to fraction form
   39,630.72/59,429.88 = 17,142.69/x
3. Step 3: Cross multiply
   39,630.72x = 59,429.88 × 17,142.69
4. Step 4: Simplify right side
   39,630.72x = 1,018,788,009.58
5. Step 5: Solve for x
   x = 1,018,788,009.58/39,630.72
6. Step 6: Final answer
   x = 25,707.03