Finding the Fourth Proportional to 13,492.04, 18,619.83 and 7,442.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,492.04 : 18,619.83 = 7,442.55 : x
2. Step 2: Convert to fraction form
   13,492.04/18,619.83 = 7,442.55/x
3. Step 3: Cross multiply
   13,492.04x = 18,619.83 × 7,442.55
4. Step 4: Simplify right side
   13,492.04x = 138,579,015.77
5. Step 5: Solve for x
   x = 138,579,015.77/13,492.04
6. Step 6: Final answer
   x = 10,271.17