Finding the Fourth Proportional to 82,779,330.42, 124,188,227.46 and 28,192,390.38

Step by Step Solution

1. Step 1: Write the proportion equation
   82,779,330.42 : 124,188,227.46 = 28,192,390.38 : x
2. Step 2: Convert to fraction form
   82,779,330.42/124,188,227.46 = 28,192,390.38/x
3. Step 3: Cross multiply
   82,779,330.42x = 124,188,227.46 × 28,192,390.38
4. Step 4: Simplify right side
   82,779,330.42x = 3,501,162,989,152,555.50
5. Step 5: Solve for x
   x = 3,501,162,989,152,555.50/82,779,330.42
6. Step 6: Final answer
   x = 42,295,135.41