Finding the Fourth Proportional to 162,340.01, 224,028.56 and 90,720.01

Step by Step Solution

1. Step 1: Write the proportion equation
   162,340.01 : 224,028.56 = 90,720.01 : x
2. Step 2: Convert to fraction form
   162,340.01/224,028.56 = 90,720.01/x
3. Step 3: Cross multiply
   162,340.01x = 224,028.56 × 90,720.01
4. Step 4: Simplify right side
   162,340.01x = 20,323,872,749.89
5. Step 5: Solve for x
   x = 20,323,872,749.89/162,340.01
6. Step 6: Final answer
   x = 125,193.25