Finding the Fourth Proportional to 12,591.72, 18,881.34 and 7,599.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,591.72 : 18,881.34 = 7,599.24 : x
2. Step 2: Convert to fraction form
   12,591.72/18,881.34 = 7,599.24/x
3. Step 3: Cross multiply
   12,591.72x = 18,881.34 × 7,599.24
4. Step 4: Simplify right side
   12,591.72x = 143,483,834.18
5. Step 5: Solve for x
   x = 143,483,834.18/12,591.72
6. Step 6: Final answer
   x = 11,395.09