Finding the Fourth Proportional to 19,659.54, 29,484.72 and 5,619.18

Step by Step Solution

1. Step 1: Write the proportion equation
   19,659.54 : 29,484.72 = 5,619.18 : x
2. Step 2: Convert to fraction form
   19,659.54/29,484.72 = 5,619.18/x
3. Step 3: Cross multiply
   19,659.54x = 29,484.72 × 5,619.18
4. Step 4: Simplify right side
   19,659.54x = 165,679,948.93
5. Step 5: Solve for x
   x = 165,679,948.93/19,659.54
6. Step 6: Final answer
   x = 8,427.46