Finding the Fourth Proportional to 11,053.83, 15,245.49 and 7,817.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,053.83 : 15,245.49 = 7,817.91 : x
2. Step 2: Convert to fraction form
   11,053.83/15,245.49 = 7,817.91/x
3. Step 3: Cross multiply
   11,053.83x = 15,245.49 × 7,817.91
4. Step 4: Simplify right side
   11,053.83x = 119,187,868.73
5. Step 5: Solve for x
   x = 119,187,868.73/11,053.83
6. Step 6: Final answer
   x = 10,782.50