Finding the Fourth Proportional to 56,936,755.50, 85,431,158.58 and 30,990,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,936,755.50 : 85,431,158.58 = 30,990,187.50 : x
2. Step 2: Convert to fraction form
   56,936,755.50/85,431,158.58 = 30,990,187.50/x
3. Step 3: Cross multiply
   56,936,755.50x = 85,431,158.58 × 30,990,187.50
4. Step 4: Simplify right side
   56,936,755.50x = 2,647,527,622,736,433.50
5. Step 5: Solve for x
   x = 2,647,527,622,736,433.50/56,936,755.50
6. Step 6: Final answer
   x = 46,499,446.61