Finding the Fourth Proportional to 64,785,998, 89,405,739.42 and 38,682,796.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,785,998 : 89,405,739.42 = 38,682,796.88 : x
2. Step 2: Convert to fraction form
   64,785,998/89,405,739.42 = 38,682,796.88/x
3. Step 3: Cross multiply
   64,785,998x = 89,405,739.42 × 38,682,796.88
4. Step 4: Simplify right side
   64,785,998x = 3,458,464,057,890,069.50
5. Step 5: Solve for x
   x = 3,458,464,057,890,069.50/64,785,998
6. Step 6: Final answer
   x = 53,382,893.91