Finding the Fourth Proportional to 19,010.71, 28,496.29 and 7,156.34

Step by Step Solution

1. Step 1: Write the proportion equation
   19,010.71 : 28,496.29 = 7,156.34 : x
2. Step 2: Convert to fraction form
   19,010.71/28,496.29 = 7,156.34/x
3. Step 3: Cross multiply
   19,010.71x = 28,496.29 × 7,156.34
4. Step 4: Simplify right side
   19,010.71x = 203,929,139.98
5. Step 5: Solve for x
   x = 203,929,139.98/19,010.71
6. Step 6: Final answer
   x = 10,727.07