Finding the Fourth Proportional to 21,547.01, 29,734.80 and 12,592.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,547.01 : 29,734.80 = 12,592.72 : x
2. Step 2: Convert to fraction form
   21,547.01/29,734.80 = 12,592.72/x
3. Step 3: Cross multiply
   21,547.01x = 29,734.80 × 12,592.72
4. Step 4: Simplify right side
   21,547.01x = 374,441,833.34
5. Step 5: Solve for x
   x = 374,441,833.34/21,547.01
6. Step 6: Final answer
   x = 17,377.90