Finding the Fourth Proportional to 17,680,665.69, 26,521,005.49 and 7,953,917.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,680,665.69 : 26,521,005.49 = 7,953,917.31 : x
2. Step 2: Convert to fraction form
   17,680,665.69/26,521,005.49 = 7,953,917.31/x
3. Step 3: Cross multiply
   17,680,665.69x = 26,521,005.49 × 7,953,917.31
4. Step 4: Simplify right side
   17,680,665.69x = 210,945,884,625,631.22
5. Step 5: Solve for x
   x = 210,945,884,625,631.22/17,680,665.69
6. Step 6: Final answer
   x = 11,930,879.09