Finding the Fourth Proportional to 31,143,238,538.97, 42,976,780,986.06 and 18,282,671,696.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,143,238,538.97 : 42,976,780,986.06 = 18,282,671,696.16 : x
2. Step 2: Convert to fraction form
   31,143,238,538.97/42,976,780,986.06 = 18,282,671,696.16/x
3. Step 3: Cross multiply
   31,143,238,538.97x = 42,976,780,986.06 × 18,282,671,696.16
4. Step 4: Simplify right side
   31,143,238,538.97x = 785,730,377,325,906,362,368
5. Step 5: Solve for x
   x = 785,730,377,325,906,362,368/31,143,238,538.97
6. Step 6: Final answer
   x = 25,229,565,523.27