Finding the Fourth Proportional to 23,002,276.51, 31,743,245.69 and 12,688,996.87

Step by Step Solution

1. Step 1: Write the proportion equation
   23,002,276.51 : 31,743,245.69 = 12,688,996.87 : x
2. Step 2: Convert to fraction form
   23,002,276.51/31,743,245.69 = 12,688,996.87/x
3. Step 3: Cross multiply
   23,002,276.51x = 31,743,245.69 × 12,688,996.87
4. Step 4: Simplify right side
   23,002,276.51x = 402,789,945,204,051
5. Step 5: Solve for x
   x = 402,789,945,204,051/23,002,276.51
6. Step 6: Final answer
   x = 17,510,873.11