Finding the Fourth Proportional to 6,661,680.29, 9,991,025.78 and 3,063,990.77

Step by Step Solution

1. Step 1: Write the proportion equation
   6,661,680.29 : 9,991,025.78 = 3,063,990.77 : x
2. Step 2: Convert to fraction form
   6,661,680.29/9,991,025.78 = 3,063,990.77/x
3. Step 3: Cross multiply
   6,661,680.29x = 9,991,025.78 × 3,063,990.77
4. Step 4: Simplify right side
   6,661,680.29x = 30,612,410,757,432.10
5. Step 5: Solve for x
   x = 30,612,410,757,432.10/6,661,680.29
6. Step 6: Final answer
   x = 4,595,298.70