Finding the Fourth Proportional to 82,654,786.56, 123,982,434.79 and 20,406,108.05

Step by Step Solution

1. Step 1: Write the proportion equation
   82,654,786.56 : 123,982,434.79 = 20,406,108.05 : x
2. Step 2: Convert to fraction form
   82,654,786.56/123,982,434.79 = 20,406,108.05/x
3. Step 3: Cross multiply
   82,654,786.56x = 123,982,434.79 × 20,406,108.05
4. Step 4: Simplify right side
   82,654,786.56x = 2,529,998,960,626,819.50
5. Step 5: Solve for x
   x = 2,529,998,960,626,819.50/82,654,786.56
6. Step 6: Final answer
   x = 30,609,225.02