Finding the Fourth Proportional to 11,776.77, 17,665.32 and 2,892.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,776.77 : 17,665.32 = 2,892.12 : x
2. Step 2: Convert to fraction form
   11,776.77/17,665.32 = 2,892.12/x
3. Step 3: Cross multiply
   11,776.77x = 17,665.32 × 2,892.12
4. Step 4: Simplify right side
   11,776.77x = 51,090,225.28
5. Step 5: Solve for x
   x = 51,090,225.28/11,776.77
6. Step 6: Final answer
   x = 4,338.22