Finding the Fourth Proportional to 11,690.72, 17,536.44 and 5,113.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,690.72 : 17,536.44 = 5,113.52 : x
2. Step 2: Convert to fraction form
   11,690.72/17,536.44 = 5,113.52/x
3. Step 3: Cross multiply
   11,690.72x = 17,536.44 × 5,113.52
4. Step 4: Simplify right side
   11,690.72x = 89,672,936.67
5. Step 5: Solve for x
   x = 89,672,936.67/11,690.72
6. Step 6: Final answer
   x = 7,670.44