Finding the Fourth Proportional to 85,496.58, 128,229.89 and 23,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,496.58 : 128,229.89 = 23,152.50 : x
2. Step 2: Convert to fraction form
   85,496.58/128,229.89 = 23,152.50/x
3. Step 3: Cross multiply
   85,496.58x = 128,229.89 × 23,152.50
4. Step 4: Simplify right side
   85,496.58x = 2,968,842,412.46
5. Step 5: Solve for x
   x = 2,968,842,412.46/85,496.58
6. Step 6: Final answer
   x = 34,724.69