Finding the Fourth Proportional to 12,557.72, 18,823.20 and 5,969.99

Step by Step Solution

1. Step 1: Write the proportion equation
   12,557.72 : 18,823.20 = 5,969.99 : x
2. Step 2: Convert to fraction form
   12,557.72/18,823.20 = 5,969.99/x
3. Step 3: Cross multiply
   12,557.72x = 18,823.20 × 5,969.99
4. Step 4: Simplify right side
   12,557.72x = 112,374,315.77
5. Step 5: Solve for x
   x = 112,374,315.77/12,557.72
6. Step 6: Final answer
   x = 8,948.62