Finding the Fourth Proportional to 19,026.72, 28,541.32 and 4,987.09

Step by Step Solution

1. Step 1: Write the proportion equation
   19,026.72 : 28,541.32 = 4,987.09 : x
2. Step 2: Convert to fraction form
   19,026.72/28,541.32 = 4,987.09/x
3. Step 3: Cross multiply
   19,026.72x = 28,541.32 × 4,987.09
4. Step 4: Simplify right side
   19,026.72x = 142,338,131.56
5. Step 5: Solve for x
   x = 142,338,131.56/19,026.72
6. Step 6: Final answer
   x = 7,480.96