Finding the Fourth Proportional to 11,642.54, 16,061.52 and 8,948.95

Step by Step Solution

1. Step 1: Write the proportion equation
   11,642.54 : 16,061.52 = 8,948.95 : x
2. Step 2: Convert to fraction form
   11,642.54/16,061.52 = 8,948.95/x
3. Step 3: Cross multiply
   11,642.54x = 16,061.52 × 8,948.95
4. Step 4: Simplify right side
   11,642.54x = 143,733,732.81
5. Step 5: Solve for x
   x = 143,733,732.81/11,642.54
6. Step 6: Final answer
   x = 12,345.57