Finding the Fourth Proportional to 162,300.52, 223,970.56 and 90,681.12

Step by Step Solution

1. Step 1: Write the proportion equation
   162,300.52 : 223,970.56 = 90,681.12 : x
2. Step 2: Convert to fraction form
   162,300.52/223,970.56 = 90,681.12/x
3. Step 3: Cross multiply
   162,300.52x = 223,970.56 × 90,681.12
4. Step 4: Simplify right side
   162,300.52x = 20,309,901,227.83
5. Step 5: Solve for x
   x = 20,309,901,227.83/162,300.52
6. Step 6: Final answer
   x = 125,137.62