Finding the Fourth Proportional to 19,776.69, 29,669.02 and 7,296.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,776.69 : 29,669.02 = 7,296.78 : x
2. Step 2: Convert to fraction form
   19,776.69/29,669.02 = 7,296.78/x
3. Step 3: Cross multiply
   19,776.69x = 29,669.02 × 7,296.78
4. Step 4: Simplify right side
   19,776.69x = 216,488,404.77
5. Step 5: Solve for x
   x = 216,488,404.77/19,776.69
6. Step 6: Final answer
   x = 10,946.65