Finding the Fourth Proportional to 39,002.58, 58,492.71 and 12,709.62

Step by Step Solution

1. Step 1: Write the proportion equation
   39,002.58 : 58,492.71 = 12,709.62 : x
2. Step 2: Convert to fraction form
   39,002.58/58,492.71 = 12,709.62/x
3. Step 3: Cross multiply
   39,002.58x = 58,492.71 × 12,709.62
4. Step 4: Simplify right side
   39,002.58x = 743,420,116.87
5. Step 5: Solve for x
   x = 743,420,116.87/39,002.58
6. Step 6: Final answer
   x = 19,060.79