Finding the Fourth Proportional to 161,146,020.70, 222,405,058.56 and 90,587,442.34

Step by Step Solution

1. Step 1: Write the proportion equation
   161,146,020.70 : 222,405,058.56 = 90,587,442.34 : x
2. Step 2: Convert to fraction form
   161,146,020.70/222,405,058.56 = 90,587,442.34/x
3. Step 3: Cross multiply
   161,146,020.70x = 222,405,058.56 × 90,587,442.34
4. Step 4: Simplify right side
   161,146,020.70x = 20,147,105,418,428,324
5. Step 5: Solve for x
   x = 20,147,105,418,428,324/161,146,020.70
6. Step 6: Final answer
   x = 125,023,908.94