Finding the Fourth Proportional to 123,069,206, 169,887,798.07 and 76,682,378.31

Step by Step Solution

1. Step 1: Write the proportion equation
   123,069,206 : 169,887,798.07 = 76,682,378.31 : x
2. Step 2: Convert to fraction form
   123,069,206/169,887,798.07 = 76,682,378.31/x
3. Step 3: Cross multiply
   123,069,206x = 169,887,798.07 × 76,682,378.31
4. Step 4: Simplify right side
   123,069,206x = 13,027,400,401,856,628
5. Step 5: Solve for x
   x = 13,027,400,401,856,628/123,069,206
6. Step 6: Final answer
   x = 105,854,265.46