Finding the Fourth Proportional to 21,051.15, 29,037.58 and 12,547.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,051.15 : 29,037.58 = 12,547.54 : x
2. Step 2: Convert to fraction form
   21,051.15/29,037.58 = 12,547.54/x
3. Step 3: Cross multiply
   21,051.15x = 29,037.58 × 12,547.54
4. Step 4: Simplify right side
   21,051.15x = 364,350,196.55
5. Step 5: Solve for x
   x = 364,350,196.55/21,051.15
6. Step 6: Final answer
   x = 17,307.85