Finding the Fourth Proportional to 148,168.50, 204,473.34 and 81,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,168.50 : 204,473.34 = 81,100.50 : x
2. Step 2: Convert to fraction form
   148,168.50/204,473.34 = 81,100.50/x
3. Step 3: Cross multiply
   148,168.50x = 204,473.34 × 81,100.50
4. Step 4: Simplify right side
   148,168.50x = 16,582,890,110.67
5. Step 5: Solve for x
   x = 16,582,890,110.67/148,168.50
6. Step 6: Final answer
   x = 111,919.13