Finding the Fourth Proportional to 31,470,120.27, 43,114,218.56 and 30,290,628.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,470,120.27 : 43,114,218.56 = 30,290,628.75 : x
2. Step 2: Convert to fraction form
   31,470,120.27/43,114,218.56 = 30,290,628.75/x
3. Step 3: Cross multiply
   31,470,120.27x = 43,114,218.56 × 30,290,628.75
4. Step 4: Simplify right side
   31,470,120.27x = 1,305,956,788,047,778
5. Step 5: Solve for x
   x = 1,305,956,788,047,778/31,470,120.27
6. Step 6: Final answer
   x = 41,498,309.41