Finding the Fourth Proportional to 108,143, 149,219.20 and 60,396.54

Step by Step Solution

1. Step 1: Write the proportion equation
   108,143 : 149,219.20 = 60,396.54 : x
2. Step 2: Convert to fraction form
   108,143/149,219.20 = 60,396.54/x
3. Step 3: Cross multiply
   108,143x = 149,219.20 × 60,396.54
4. Step 4: Simplify right side
   108,143x = 9,012,323,381.57
5. Step 5: Solve for x
   x = 9,012,323,381.57/108,143
6. Step 6: Final answer
   x = 83,337.09