Finding the Fourth Proportional to 107,769,456.30, 161,756,384.52 and 66,704,678.10

Step by Step Solution

1. Step 1: Write the proportion equation
   107,769,456.30 : 161,756,384.52 = 66,704,678.10 : x
2. Step 2: Convert to fraction form
   107,769,456.30/161,756,384.52 = 66,704,678.10/x
3. Step 3: Cross multiply
   107,769,456.30x = 161,756,384.52 × 66,704,678.10
4. Step 4: Simplify right side
   107,769,456.30x = 10,789,907,560,026,424
5. Step 5: Solve for x
   x = 10,789,907,560,026,424/107,769,456.30
6. Step 6: Final answer
   x = 100,120,274.62