Finding the Fourth Proportional to 8,485,892.56, 12,724,892.48 and 3,090,787.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,485,892.56 : 12,724,892.48 = 3,090,787.12 : x
2. Step 2: Convert to fraction form
   8,485,892.56/12,724,892.48 = 3,090,787.12/x
3. Step 3: Cross multiply
   8,485,892.56x = 12,724,892.48 × 3,090,787.12
4. Step 4: Simplify right side
   8,485,892.56x = 39,329,933,780,568.86
5. Step 5: Solve for x
   x = 39,329,933,780,568.86/8,485,892.56
6. Step 6: Final answer
   x = 4,634,743.31