Finding the Fourth Proportional to 31,055,236.18, 42,865,933.25 and 20,042,007.19

Step by Step Solution

1. Step 1: Write the proportion equation
   31,055,236.18 : 42,865,933.25 = 20,042,007.19 : x
2. Step 2: Convert to fraction form
   31,055,236.18/42,865,933.25 = 20,042,007.19/x
3. Step 3: Cross multiply
   31,055,236.18x = 42,865,933.25 × 20,042,007.19
4. Step 4: Simplify right side
   31,055,236.18x = 859,119,342,345,500.25
5. Step 5: Solve for x
   x = 859,119,342,345,500.25/31,055,236.18
6. Step 6: Final answer
   x = 27,664,234.70