Finding the Fourth Proportional to 1,248,834,736.18, 1,872,525,990.56 and 472,540,365.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,834,736.18 : 1,872,525,990.56 = 472,540,365.46 : x
2. Step 2: Convert to fraction form
   1,248,834,736.18/1,872,525,990.56 = 472,540,365.46/x
3. Step 3: Cross multiply
   1,248,834,736.18x = 1,872,525,990.56 × 472,540,365.46
4. Step 4: Simplify right side
   1,248,834,736.18x = 884,844,115,912,570,880
5. Step 5: Solve for x
   x = 884,844,115,912,570,880/1,248,834,736.18
6. Step 6: Final answer
   x = 708,535,797.63