Finding the Fourth Proportional to 12,937.79, 19,401.59 and 5,039.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,937.79 : 19,401.59 = 5,039.25 : x
2. Step 2: Convert to fraction form
   12,937.79/19,401.59 = 5,039.25/x
3. Step 3: Cross multiply
   12,937.79x = 19,401.59 × 5,039.25
4. Step 4: Simplify right side
   12,937.79x = 97,769,402.25
5. Step 5: Solve for x
   x = 97,769,402.25/12,937.79
6. Step 6: Final answer
   x = 7,556.88