Finding the Fourth Proportional to 13,300.66, 19,948.74 and 3,940.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.66 : 19,948.74 = 3,940.48 : x
2. Step 2: Convert to fraction form
   13,300.66/19,948.74 = 3,940.48/x
3. Step 3: Cross multiply
   13,300.66x = 19,948.74 × 3,940.48
4. Step 4: Simplify right side
   13,300.66x = 78,607,611.00
5. Step 5: Solve for x
   x = 78,607,611.00/13,300.66
6. Step 6: Final answer
   x = 5,910.05