Finding the Fourth Proportional to 1,008,781,687.02, 1,513,118,721.94 and 271,839,759.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,781,687.02 : 1,513,118,721.94 = 271,839,759.72 : x
2. Step 2: Convert to fraction form
   1,008,781,687.02/1,513,118,721.94 = 271,839,759.72/x
3. Step 3: Cross multiply
   1,008,781,687.02x = 1,513,118,721.94 × 271,839,759.72
4. Step 4: Simplify right side
   1,008,781,687.02x = 411,325,829,800,003,136
5. Step 5: Solve for x
   x = 411,325,829,800,003,136/1,008,781,687.02
6. Step 6: Final answer
   x = 407,745,139.60