Finding the Fourth Proportional to 199,878,214.89, 275,839,468.83 and 111,772,013.91

Step by Step Solution

1. Step 1: Write the proportion equation
   199,878,214.89 : 275,839,468.83 = 111,772,013.91 : x
2. Step 2: Convert to fraction form
   199,878,214.89/275,839,468.83 = 111,772,013.91/x
3. Step 3: Cross multiply
   199,878,214.89x = 275,839,468.83 × 111,772,013.91
4. Step 4: Simplify right side
   199,878,214.89x = 30,831,132,946,993,768
5. Step 5: Solve for x
   x = 30,831,132,946,993,768/199,878,214.89
6. Step 6: Final answer
   x = 154,249,591.25