Finding the Fourth Proportional to 21,036.31, 29,030.20 and 11,476.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,036.31 : 29,030.20 = 11,476.42 : x
2. Step 2: Convert to fraction form
   21,036.31/29,030.20 = 11,476.42/x
3. Step 3: Cross multiply
   21,036.31x = 29,030.20 × 11,476.42
4. Step 4: Simplify right side
   21,036.31x = 333,162,666.62
5. Step 5: Solve for x
   x = 333,162,666.62/21,036.31
6. Step 6: Final answer
   x = 15,837.51