Finding the Fourth Proportional to 27,886.01, 38,483 and 15,139.31

Step by Step Solution

1. Step 1: Write the proportion equation
   27,886.01 : 38,483 = 15,139.31 : x
2. Step 2: Convert to fraction form
   27,886.01/38,483 = 15,139.31/x
3. Step 3: Cross multiply
   27,886.01x = 38,483 × 15,139.31
4. Step 4: Simplify right side
   27,886.01x = 582,606,066.73
5. Step 5: Solve for x
   x = 582,606,066.73/27,886.01
6. Step 6: Final answer
   x = 20,892.41