Finding the Fourth Proportional to 19,061.48, 28,581.78 and 5,910.20

Step by Step Solution

1. Step 1: Write the proportion equation
   19,061.48 : 28,581.78 = 5,910.20 : x
2. Step 2: Convert to fraction form
   19,061.48/28,581.78 = 5,910.20/x
3. Step 3: Cross multiply
   19,061.48x = 28,581.78 × 5,910.20
4. Step 4: Simplify right side
   19,061.48x = 168,924,036.16
5. Step 5: Solve for x
   x = 168,924,036.16/19,061.48
6. Step 6: Final answer
   x = 8,862.06