Finding the Fourth Proportional to 162,139, 223,747.46 and 90,517

Step by Step Solution

1. Step 1: Write the proportion equation
   162,139 : 223,747.46 = 90,517 : x
2. Step 2: Convert to fraction form
   162,139/223,747.46 = 90,517/x
3. Step 3: Cross multiply
   162,139x = 223,747.46 × 90,517
4. Step 4: Simplify right side
   162,139x = 20,252,948,836.82
5. Step 5: Solve for x
   x = 20,252,948,836.82/162,139
6. Step 6: Final answer
   x = 124,911.03