Finding the Fourth Proportional to 12,185,749.25, 16,818,138.83 and 7,715,719.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185,749.25 : 16,818,138.83 = 7,715,719.83 : x
2. Step 2: Convert to fraction form
   12,185,749.25/16,818,138.83 = 7,715,719.83/x
3. Step 3: Cross multiply
   12,185,749.25x = 16,818,138.83 × 7,715,719.83
4. Step 4: Simplify right side
   12,185,749.25x = 129,764,047,251,567.94
5. Step 5: Solve for x
   x = 129,764,047,251,567.94/12,185,749.25
6. Step 6: Final answer
   x = 10,648,836.16