Finding the Fourth Proportional to 13,016.07, 19,532.14 and 5,117.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.07 : 19,532.14 = 5,117.20 : x
2. Step 2: Convert to fraction form
   13,016.07/19,532.14 = 5,117.20/x
3. Step 3: Cross multiply
   13,016.07x = 19,532.14 × 5,117.20
4. Step 4: Simplify right side
   13,016.07x = 99,949,866.81
5. Step 5: Solve for x
   x = 99,949,866.81/13,016.07
6. Step 6: Final answer
   x = 7,678.96