Finding the Fourth Proportional to 208,845,498.05, 288,189,917.27 and 120,745,174.29

Step by Step Solution

1. Step 1: Write the proportion equation
   208,845,498.05 : 288,189,917.27 = 120,745,174.29 : x
2. Step 2: Convert to fraction form
   208,845,498.05/288,189,917.27 = 120,745,174.29/x
3. Step 3: Cross multiply
   208,845,498.05x = 288,189,917.27 × 120,745,174.29
4. Step 4: Simplify right side
   208,845,498.05x = 34,797,541,788,783,104
5. Step 5: Solve for x
   x = 34,797,541,788,783,104/208,845,498.05
6. Step 6: Final answer
   x = 166,618,587.02