Finding the Fourth Proportional to 78,709,790.68, 108,654,340.76 and 50,846,086.87

Step by Step Solution

1. Step 1: Write the proportion equation
   78,709,790.68 : 108,654,340.76 = 50,846,086.87 : x
2. Step 2: Convert to fraction form
   78,709,790.68/108,654,340.76 = 50,846,086.87/x
3. Step 3: Cross multiply
   78,709,790.68x = 108,654,340.76 × 50,846,086.87
4. Step 4: Simplify right side
   78,709,790.68x = 5,524,648,049,085,542
5. Step 5: Solve for x
   x = 5,524,648,049,085,542/78,709,790.68
6. Step 6: Final answer
   x = 70,190,099.62