Finding the Fourth Proportional to 21,978.03, 32,971.29 and 7,182.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978.03 : 32,971.29 = 7,182.96 : x
2. Step 2: Convert to fraction form
   21,978.03/32,971.29 = 7,182.96/x
3. Step 3: Cross multiply
   21,978.03x = 32,971.29 × 7,182.96
4. Step 4: Simplify right side
   21,978.03x = 236,831,457.22
5. Step 5: Solve for x
   x = 236,831,457.22/21,978.03
6. Step 6: Final answer
   x = 10,775.83