Finding the Fourth Proportional to 159,002.42, 219,436.80 and 108,128.01

Step by Step Solution

1. Step 1: Write the proportion equation
   159,002.42 : 219,436.80 = 108,128.01 : x
2. Step 2: Convert to fraction form
   159,002.42/219,436.80 = 108,128.01/x
3. Step 3: Cross multiply
   159,002.42x = 219,436.80 × 108,128.01
4. Step 4: Simplify right side
   159,002.42x = 23,727,264,504.77
5. Step 5: Solve for x
   x = 23,727,264,504.77/159,002.42
6. Step 6: Final answer
   x = 149,225.81