Finding the Fourth Proportional to 31,086,340.13, 42,899,190.71 and 17,147,380.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,086,340.13 : 42,899,190.71 = 17,147,380.81 : x
2. Step 2: Convert to fraction form
   31,086,340.13/42,899,190.71 = 17,147,380.81/x
3. Step 3: Cross multiply
   31,086,340.13x = 42,899,190.71 × 17,147,380.81
4. Step 4: Simplify right side
   31,086,340.13x = 735,608,759,244,951.38
5. Step 5: Solve for x
   x = 735,608,759,244,951.38/31,086,340.13
6. Step 6: Final answer
   x = 23,663,408.31