Finding the Fourth Proportional to 19,390.48, 29,081.72 and 5,536.40

Step by Step Solution

1. Step 1: Write the proportion equation
   19,390.48 : 29,081.72 = 5,536.40 : x
2. Step 2: Convert to fraction form
   19,390.48/29,081.72 = 5,536.40/x
3. Step 3: Cross multiply
   19,390.48x = 29,081.72 × 5,536.40
4. Step 4: Simplify right side
   19,390.48x = 161,008,034.61
5. Step 5: Solve for x
   x = 161,008,034.61/19,390.48
6. Step 6: Final answer
   x = 8,303.46