Finding the Fourth Proportional to 21,080.52, 29,094.17 and 12,583

Step by Step Solution

1. Step 1: Write the proportion equation
   21,080.52 : 29,094.17 = 12,583 : x
2. Step 2: Convert to fraction form
   21,080.52/29,094.17 = 12,583/x
3. Step 3: Cross multiply
   21,080.52x = 29,094.17 × 12,583
4. Step 4: Simplify right side
   21,080.52x = 366,091,941.11
5. Step 5: Solve for x
   x = 366,091,941.11/21,080.52
6. Step 6: Final answer
   x = 17,366.36