Finding the Fourth Proportional to 10,873.63, 14,991.33 and 7,846.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,873.63 : 14,991.33 = 7,846.21 : x
2. Step 2: Convert to fraction form
   10,873.63/14,991.33 = 7,846.21/x
3. Step 3: Cross multiply
   10,873.63x = 14,991.33 × 7,846.21
4. Step 4: Simplify right side
   10,873.63x = 117,625,123.36
5. Step 5: Solve for x
   x = 117,625,123.36/10,873.63
6. Step 6: Final answer
   x = 10,817.47