Finding the Fourth Proportional to 123,069,207.78, 169,887,800.53 and 76,682,380.09

Step by Step Solution

1. Step 1: Write the proportion equation
   123,069,207.78 : 169,887,800.53 = 76,682,380.09 : x
2. Step 2: Convert to fraction form
   123,069,207.78/169,887,800.53 = 76,682,380.09/x
3. Step 3: Cross multiply
   123,069,207.78x = 169,887,800.53 × 76,682,380.09
4. Step 4: Simplify right side
   123,069,207.78x = 13,027,400,892,772,056
5. Step 5: Solve for x
   x = 13,027,400,892,772,056/123,069,207.78
6. Step 6: Final answer
   x = 105,854,267.92