Finding the Fourth Proportional to 21,856.61, 32,755.89 and 8,701.76

Step by Step Solution

1. Step 1: Write the proportion equation
   21,856.61 : 32,755.89 = 8,701.76 : x
2. Step 2: Convert to fraction form
   21,856.61/32,755.89 = 8,701.76/x
3. Step 3: Cross multiply
   21,856.61x = 32,755.89 × 8,701.76
4. Step 4: Simplify right side
   21,856.61x = 285,033,893.37
5. Step 5: Solve for x
   x = 285,033,893.37/21,856.61
6. Step 6: Final answer
   x = 13,041.08