Finding the Fourth Proportional to 162,101.81, 243,152.72 and 83,165.69

Step by Step Solution

1. Step 1: Write the proportion equation
   162,101.81 : 243,152.72 = 83,165.69 : x
2. Step 2: Convert to fraction form
   162,101.81/243,152.72 = 83,165.69/x
3. Step 3: Cross multiply
   162,101.81x = 243,152.72 × 83,165.69
4. Step 4: Simplify right side
   162,101.81x = 20,221,963,734.18
5. Step 5: Solve for x
   x = 20,221,963,734.18/162,101.81
6. Step 6: Final answer
   x = 124,748.54