Finding the Fourth Proportional to 11,070.81, 16,594.07 and 7,783.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,070.81 : 16,594.07 = 7,783.02 : x
2. Step 2: Convert to fraction form
   11,070.81/16,594.07 = 7,783.02/x
3. Step 3: Cross multiply
   11,070.81x = 16,594.07 × 7,783.02
4. Step 4: Simplify right side
   11,070.81x = 129,151,939.78
5. Step 5: Solve for x
   x = 129,151,939.78/11,070.81
6. Step 6: Final answer
   x = 11,665.99