Finding the Fourth Proportional to 21,820.71, 32,733.62 and 7,782.73

Step by Step Solution

1. Step 1: Write the proportion equation
   21,820.71 : 32,733.62 = 7,782.73 : x
2. Step 2: Convert to fraction form
   21,820.71/32,733.62 = 7,782.73/x
3. Step 3: Cross multiply
   21,820.71x = 32,733.62 × 7,782.73
4. Step 4: Simplify right side
   21,820.71x = 254,756,926.38
5. Step 5: Solve for x
   x = 254,756,926.38/21,820.71
6. Step 6: Final answer
   x = 11,675.01