Finding the Fourth Proportional to 300,499,780.01, 415,078,695.47 and 248,498,868.65

Step by Step Solution

1. Step 1: Write the proportion equation
   300,499,780.01 : 415,078,695.47 = 248,498,868.65 : x
2. Step 2: Convert to fraction form
   300,499,780.01/415,078,695.47 = 248,498,868.65/x
3. Step 3: Cross multiply
   300,499,780.01x = 415,078,695.47 × 248,498,868.65
4. Step 4: Simplify right side
   300,499,780.01x = 103,146,586,223,558,752
5. Step 5: Solve for x
   x = 103,146,586,223,558,752/300,499,780.01
6. Step 6: Final answer
   x = 343,250,122.25