Finding the Fourth Proportional to 19,978.34, 27,569.84 and 11,026.01

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978.34 : 27,569.84 = 11,026.01 : x
2. Step 2: Convert to fraction form
   19,978.34/27,569.84 = 11,026.01/x
3. Step 3: Cross multiply
   19,978.34x = 27,569.84 × 11,026.01
4. Step 4: Simplify right side
   19,978.34x = 303,985,345.33
5. Step 5: Solve for x
   x = 303,985,345.33/19,978.34
6. Step 6: Final answer
   x = 15,215.75