Finding the Fourth Proportional to 13,129.50, 19,697.49 and 3,895.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,129.50 : 19,697.49 = 3,895.50 : x
2. Step 2: Convert to fraction form
   13,129.50/19,697.49 = 3,895.50/x
3. Step 3: Cross multiply
   13,129.50x = 19,697.49 × 3,895.50
4. Step 4: Simplify right side
   13,129.50x = 76,731,572.30
5. Step 5: Solve for x
   x = 76,731,572.30/13,129.50
6. Step 6: Final answer
   x = 5,844.21