Finding the Fourth Proportional to 11,707,949.82, 17,543,718.99 and 8,120,725.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,707,949.82 : 17,543,718.99 = 8,120,725.50 : x
2. Step 2: Convert to fraction form
   11,707,949.82/17,543,718.99 = 8,120,725.50/x
3. Step 3: Cross multiply
   11,707,949.82x = 17,543,718.99 × 8,120,725.50
4. Step 4: Simplify right side
   11,707,949.82x = 142,467,726,166,927.22
5. Step 5: Solve for x
   x = 142,467,726,166,927.22/11,707,949.82
6. Step 6: Final answer
   x = 12,168,460.61