Finding the Fourth Proportional to 13,300.17, 19,948.73 and 3,438.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.17 : 19,948.73 = 3,438.69 : x
2. Step 2: Convert to fraction form
   13,300.17/19,948.73 = 3,438.69/x
3. Step 3: Cross multiply
   13,300.17x = 19,948.73 × 3,438.69
4. Step 4: Simplify right side
   13,300.17x = 68,597,481.17
5. Step 5: Solve for x
   x = 68,597,481.17/13,300.17
6. Step 6: Final answer
   x = 5,157.64