Finding the Fourth Proportional to 39,156.95, 58,717.98 and 12,498.03

Step by Step Solution

1. Step 1: Write the proportion equation
   39,156.95 : 58,717.98 = 12,498.03 : x
2. Step 2: Convert to fraction form
   39,156.95/58,717.98 = 12,498.03/x
3. Step 3: Cross multiply
   39,156.95x = 58,717.98 × 12,498.03
4. Step 4: Simplify right side
   39,156.95x = 733,859,075.58
5. Step 5: Solve for x
   x = 733,859,075.58/39,156.95
6. Step 6: Final answer
   x = 18,741.48