Finding the Fourth Proportional to 51,091,116.43, 76,670,522.23 and 28,078,121.88

Step by Step Solution

1. Step 1: Write the proportion equation
   51,091,116.43 : 76,670,522.23 = 28,078,121.88 : x
2. Step 2: Convert to fraction form
   51,091,116.43/76,670,522.23 = 28,078,121.88/x
3. Step 3: Cross multiply
   51,091,116.43x = 76,670,522.23 × 28,078,121.88
4. Step 4: Simplify right side
   51,091,116.43x = 2,152,764,267,850,751.50
5. Step 5: Solve for x
   x = 2,152,764,267,850,751.50/51,091,116.43
6. Step 6: Final answer
   x = 42,135,784.43