Finding the Fourth Proportional to 21,090.00, 29,105.07 and 12,137.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,090.00 : 29,105.07 = 12,137.52 : x
2. Step 2: Convert to fraction form
   21,090.00/29,105.07 = 12,137.52/x
3. Step 3: Cross multiply
   21,090.00x = 29,105.07 × 12,137.52
4. Step 4: Simplify right side
   21,090.00x = 353,263,419.27
5. Step 5: Solve for x
   x = 353,263,419.27/21,090.00
6. Step 6: Final answer
   x = 16,750.28