Finding the Fourth Proportional to 11,636.40, 17,451.12 and 5,061

Step by Step Solution

1. Step 1: Write the proportion equation
   11,636.40 : 17,451.12 = 5,061 : x
2. Step 2: Convert to fraction form
   11,636.40/17,451.12 = 5,061/x
3. Step 3: Cross multiply
   11,636.40x = 17,451.12 × 5,061
4. Step 4: Simplify right side
   11,636.40x = 88,320,118.32
5. Step 5: Solve for x
   x = 88,320,118.32/11,636.40
6. Step 6: Final answer
   x = 7,589.99