Finding the Fourth Proportional to 51,086,978.32, 76,563,930.84 and 20,759,386

Step by Step Solution

1. Step 1: Write the proportion equation
   51,086,978.32 : 76,563,930.84 = 20,759,386 : x
2. Step 2: Convert to fraction form
   51,086,978.32/76,563,930.84 = 20,759,386/x
3. Step 3: Cross multiply
   51,086,978.32x = 76,563,930.84 × 20,759,386
4. Step 4: Simplify right side
   51,086,978.32x = 1,589,420,193,984,864.25
5. Step 5: Solve for x
   x = 1,589,420,193,984,864.25/51,086,978.32
6. Step 6: Final answer
   x = 31,112,041.59