Finding the Fourth Proportional to 831,619,760.84, 1,147,451,796.72 and 492,359,777.88

Step by Step Solution

1. Step 1: Write the proportion equation
   831,619,760.84 : 1,147,451,796.72 = 492,359,777.88 : x
2. Step 2: Convert to fraction form
   831,619,760.84/1,147,451,796.72 = 492,359,777.88/x
3. Step 3: Cross multiply
   831,619,760.84x = 1,147,451,796.72 × 492,359,777.88
4. Step 4: Simplify right side
   831,619,760.84x = 564,959,111,761,066,112
5. Step 5: Solve for x
   x = 564,959,111,761,066,112/831,619,760.84
6. Step 6: Final answer
   x = 679,347,868.30