Finding the Fourth Proportional to 21,024.63, 29,004.89 and 12,070.08

Step by Step Solution

1. Step 1: Write the proportion equation
   21,024.63 : 29,004.89 = 12,070.08 : x
2. Step 2: Convert to fraction form
   21,024.63/29,004.89 = 12,070.08/x
3. Step 3: Cross multiply
   21,024.63x = 29,004.89 × 12,070.08
4. Step 4: Simplify right side
   21,024.63x = 350,091,282.34
5. Step 5: Solve for x
   x = 350,091,282.34/21,024.63
6. Step 6: Final answer
   x = 16,651.48