Finding the Fourth Proportional to 21,980.06, 32,969.62 and 5,340.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,980.06 : 32,969.62 = 5,340.18 : x
2. Step 2: Convert to fraction form
   21,980.06/32,969.62 = 5,340.18/x
3. Step 3: Cross multiply
   21,980.06x = 32,969.62 × 5,340.18
4. Step 4: Simplify right side
   21,980.06x = 176,063,620.15
5. Step 5: Solve for x
   x = 176,063,620.15/21,980.06
6. Step 6: Final answer
   x = 8,010.15