Finding the Fourth Proportional to 11,790,063.70, 17,643,105.15 and 8,178,889.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,790,063.70 : 17,643,105.15 = 8,178,889.30 : x
2. Step 2: Convert to fraction form
   11,790,063.70/17,643,105.15 = 8,178,889.30/x
3. Step 3: Cross multiply
   11,790,063.70x = 17,643,105.15 × 8,178,889.30
4. Step 4: Simplify right side
   11,790,063.70x = 144,301,003,930,109.88
5. Step 5: Solve for x
   x = 144,301,003,930,109.88/11,790,063.70
6. Step 6: Final answer
   x = 12,239,204.77