Finding the Fourth Proportional to 19,019.25, 28,523.34 and 7,329.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,019.25 : 28,523.34 = 7,329.72 : x
2. Step 2: Convert to fraction form
   19,019.25/28,523.34 = 7,329.72/x
3. Step 3: Cross multiply
   19,019.25x = 28,523.34 × 7,329.72
4. Step 4: Simplify right side
   19,019.25x = 209,068,095.66
5. Step 5: Solve for x
   x = 209,068,095.66/19,019.25
6. Step 6: Final answer
   x = 10,992.45