Finding the Fourth Proportional to 162,201.89, 243,302.83 and 83,272.25

Step by Step Solution

1. Step 1: Write the proportion equation
   162,201.89 : 243,302.83 = 83,272.25 : x
2. Step 2: Convert to fraction form
   162,201.89/243,302.83 = 83,272.25/x
3. Step 3: Cross multiply
   162,201.89x = 243,302.83 × 83,272.25
4. Step 4: Simplify right side
   162,201.89x = 20,260,374,085.47
5. Step 5: Solve for x
   x = 20,260,374,085.47/162,201.89
6. Step 6: Final answer
   x = 124,908.37