Finding the Fourth Proportional to 19,493.81, 29,245.59 and 5,642.81

Step by Step Solution

1. Step 1: Write the proportion equation
   19,493.81 : 29,245.59 = 5,642.81 : x
2. Step 2: Convert to fraction form
   19,493.81/29,245.59 = 5,642.81/x
3. Step 3: Cross multiply
   19,493.81x = 29,245.59 × 5,642.81
4. Step 4: Simplify right side
   19,493.81x = 165,027,380.82
5. Step 5: Solve for x
   x = 165,027,380.82/19,493.81
6. Step 6: Final answer
   x = 8,465.63