Finding the Fourth Proportional to 107,705,508.96, 161,438,590.56 and 82,061,971.68

Step by Step Solution

1. Step 1: Write the proportion equation
   107,705,508.96 : 161,438,590.56 = 82,061,971.68 : x
2. Step 2: Convert to fraction form
   107,705,508.96/161,438,590.56 = 82,061,971.68/x
3. Step 3: Cross multiply
   107,705,508.96x = 161,438,590.56 × 82,061,971.68
4. Step 4: Simplify right side
   107,705,508.96x = 13,247,969,046,593,836
5. Step 5: Solve for x
   x = 13,247,969,046,593,836/107,705,508.96
6. Step 6: Final answer
   x = 123,001,777.48