Finding the Fourth Proportional to 258,498,145.98, 356,725,748.52 and 146,988,995.22

Step by Step Solution

1. Step 1: Write the proportion equation
   258,498,145.98 : 356,725,748.52 = 146,988,995.22 : x
2. Step 2: Convert to fraction form
   258,498,145.98/356,725,748.52 = 146,988,995.22/x
3. Step 3: Cross multiply
   258,498,145.98x = 356,725,748.52 × 146,988,995.22
4. Step 4: Simplify right side
   258,498,145.98x = 52,434,759,344,057,200
5. Step 5: Solve for x
   x = 52,434,759,344,057,200/258,498,145.98
6. Step 6: Final answer
   x = 202,843,850.76