Finding the Fourth Proportional to 21,820.51, 32,731.17 and 7,030.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,820.51 : 32,731.17 = 7,030.72 : x
2. Step 2: Convert to fraction form
   21,820.51/32,731.17 = 7,030.72/x
3. Step 3: Cross multiply
   21,820.51x = 32,731.17 × 7,030.72
4. Step 4: Simplify right side
   21,820.51x = 230,123,691.54
5. Step 5: Solve for x
   x = 230,123,691.54/21,820.51
6. Step 6: Final answer
   x = 10,546.21