Finding the Fourth Proportional to 162,105.90, 243,043.65 and 73,401.90

Step by Step Solution

1. Step 1: Write the proportion equation
   162,105.90 : 243,043.65 = 73,401.90 : x
2. Step 2: Convert to fraction form
   162,105.90/243,043.65 = 73,401.90/x
3. Step 3: Cross multiply
   162,105.90x = 243,043.65 × 73,401.90
4. Step 4: Simplify right side
   162,105.90x = 17,839,865,692.94
5. Step 5: Solve for x
   x = 17,839,865,692.94/162,105.90
6. Step 6: Final answer
   x = 110,050.69