Finding the Fourth Proportional to 40,188,086.62, 55,490,798.69 and 30,880,986.14

Step by Step Solution

1. Step 1: Write the proportion equation
   40,188,086.62 : 55,490,798.69 = 30,880,986.14 : x
2. Step 2: Convert to fraction form
   40,188,086.62/55,490,798.69 = 30,880,986.14/x
3. Step 3: Cross multiply
   40,188,086.62x = 55,490,798.69 × 30,880,986.14
4. Step 4: Simplify right side
   40,188,086.62x = 1,713,610,585,343,545.75
5. Step 5: Solve for x
   x = 1,713,610,585,343,545.75/40,188,086.62
6. Step 6: Final answer
   x = 42,639,765.40