Finding the Fourth Proportional to 2,251,945,123.53, 3,107,684,221.08 and 1,248,360,147.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251,945,123.53 : 3,107,684,221.08 = 1,248,360,147.78 : x
2. Step 2: Convert to fraction form
   2,251,945,123.53/3,107,684,221.08 = 1,248,360,147.78/x
3. Step 3: Cross multiply
   2,251,945,123.53x = 3,107,684,221.08 × 1,248,360,147.78
4. Step 4: Simplify right side
   2,251,945,123.53x = 3,879,509,133,481,003,008
5. Step 5: Solve for x
   x = 3,879,509,133,481,003,008/2,251,945,123.53
6. Step 6: Final answer
   x = 1,722,736,976.56