Finding the Fourth Proportional to 21,499.52, 29,666.76 and 12,546

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.52 : 29,666.76 = 12,546 : x
2. Step 2: Convert to fraction form
   21,499.52/29,666.76 = 12,546/x
3. Step 3: Cross multiply
   21,499.52x = 29,666.76 × 12,546
4. Step 4: Simplify right side
   21,499.52x = 372,199,170.96
5. Step 5: Solve for x
   x = 372,199,170.96/21,499.52
6. Step 6: Final answer
   x = 17,311.98