Finding the Fourth Proportional to 19,064.52, 28,602.18 and 10,305.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,064.52 : 28,602.18 = 10,305.72 : x
2. Step 2: Convert to fraction form
   19,064.52/28,602.18 = 10,305.72/x
3. Step 3: Cross multiply
   19,064.52x = 28,602.18 × 10,305.72
4. Step 4: Simplify right side
   19,064.52x = 294,766,058.47
5. Step 5: Solve for x
   x = 294,766,058.47/19,064.52
6. Step 6: Final answer
   x = 15,461.50