Finding the Fourth Proportional to 124,285,105.85, 186,427,653.30 and 55,181,665.76

Step by Step Solution

1. Step 1: Write the proportion equation
   124,285,105.85 : 186,427,653.30 = 55,181,665.76 : x
2. Step 2: Convert to fraction form
   124,285,105.85/186,427,653.30 = 55,181,665.76/x
3. Step 3: Cross multiply
   124,285,105.85x = 186,427,653.30 × 55,181,665.76
4. Step 4: Simplify right side
   124,285,105.85x = 10,287,388,451,889,624
5. Step 5: Solve for x
   x = 10,287,388,451,889,624/124,285,105.85
6. Step 6: Final answer
   x = 82,772,496.20