Finding the Fourth Proportional to 19,079,016.63, 26,326,653.25 and 12,897,513.07

Step by Step Solution

1. Step 1: Write the proportion equation
   19,079,016.63 : 26,326,653.25 = 12,897,513.07 : x
2. Step 2: Convert to fraction form
   19,079,016.63/26,326,653.25 = 12,897,513.07/x
3. Step 3: Cross multiply
   19,079,016.63x = 26,326,653.25 × 12,897,513.07
4. Step 4: Simplify right side
   19,079,016.63x = 339,548,354,381,233
5. Step 5: Solve for x
   x = 339,548,354,381,233/19,079,016.63
6. Step 6: Final answer
   x = 17,796,952.59