Finding the Fourth Proportional to 21,900.06, 32,865.93 and 8,756.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,900.06 : 32,865.93 = 8,756.10 : x
2. Step 2: Convert to fraction form
   21,900.06/32,865.93 = 8,756.10/x
3. Step 3: Cross multiply
   21,900.06x = 32,865.93 × 8,756.10
4. Step 4: Simplify right side
   21,900.06x = 287,777,369.67
5. Step 5: Solve for x
   x = 287,777,369.67/21,900.06
6. Step 6: Final answer
   x = 13,140.48