Finding the Fourth Proportional to 65,770,479.18, 90,757,111.95 and 39,303,580.77

Step by Step Solution

1. Step 1: Write the proportion equation
   65,770,479.18 : 90,757,111.95 = 39,303,580.77 : x
2. Step 2: Convert to fraction form
   65,770,479.18/90,757,111.95 = 39,303,580.77/x
3. Step 3: Cross multiply
   65,770,479.18x = 90,757,111.95 × 39,303,580.77
4. Step 4: Simplify right side
   65,770,479.18x = 3,567,079,479,978,757.50
5. Step 5: Solve for x
   x = 3,567,079,479,978,757.50/65,770,479.18
6. Step 6: Final answer
   x = 54,235,266.71