Finding the Fourth Proportional to 21,051,623.10, 29,053,760.55 and 12,793,034.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,051,623.10 : 29,053,760.55 = 12,793,034.82 : x
2. Step 2: Convert to fraction form
   21,051,623.10/29,053,760.55 = 12,793,034.82/x
3. Step 3: Cross multiply
   21,051,623.10x = 29,053,760.55 × 12,793,034.82
4. Step 4: Simplify right side
   21,051,623.10x = 371,685,770,368,092.38
5. Step 5: Solve for x
   x = 371,685,770,368,092.38/21,051,623.10
6. Step 6: Final answer
   x = 17,655,919.86