Finding the Fourth Proportional to 85,399.49, 128,084.72 and 23,055.41

Step by Step Solution

1. Step 1: Write the proportion equation
   85,399.49 : 128,084.72 = 23,055.41 : x
2. Step 2: Convert to fraction form
   85,399.49/128,084.72 = 23,055.41/x
3. Step 3: Cross multiply
   85,399.49x = 128,084.72 × 23,055.41
4. Step 4: Simplify right side
   85,399.49x = 2,953,045,619.06
5. Step 5: Solve for x
   x = 2,953,045,619.06/85,399.49
6. Step 6: Final answer
   x = 34,579.20