Finding the Fourth Proportional to 15,296.52, 21,111.40 and 8,492.10

Step by Step Solution

1. Step 1: Write the proportion equation
   15,296.52 : 21,111.40 = 8,492.10 : x
2. Step 2: Convert to fraction form
   15,296.52/21,111.40 = 8,492.10/x
3. Step 3: Cross multiply
   15,296.52x = 21,111.40 × 8,492.10
4. Step 4: Simplify right side
   15,296.52x = 179,280,164.00
5. Step 5: Solve for x
   x = 179,280,164.00/15,296.52
6. Step 6: Final answer
   x = 11,720.32