Finding the Fourth Proportional to 11,665.72, 17,505.84 and 5,092

Step by Step Solution

1. Step 1: Write the proportion equation
   11,665.72 : 17,505.84 = 5,092 : x
2. Step 2: Convert to fraction form
   11,665.72/17,505.84 = 5,092/x
3. Step 3: Cross multiply
   11,665.72x = 17,505.84 × 5,092
4. Step 4: Simplify right side
   11,665.72x = 89,139,737.28
5. Step 5: Solve for x
   x = 89,139,737.28/11,665.72
6. Step 6: Final answer
   x = 7,641.17