Finding the Fourth Proportional to 16,641.70, 24,973.72 and 7,877.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,641.70 : 24,973.72 = 7,877.30 : x
2. Step 2: Convert to fraction form
   16,641.70/24,973.72 = 7,877.30/x
3. Step 3: Cross multiply
   16,641.70x = 24,973.72 × 7,877.30
4. Step 4: Simplify right side
   16,641.70x = 196,725,480.47
5. Step 5: Solve for x
   x = 196,725,480.47/16,641.70
6. Step 6: Final answer
   x = 11,821.23