Finding the Fourth Proportional to 85,492.49, 128,238.71 and 23,162.99

Step by Step Solution

1. Step 1: Write the proportion equation
   85,492.49 : 128,238.71 = 23,162.99 : x
2. Step 2: Convert to fraction form
   85,492.49/128,238.71 = 23,162.99/x
3. Step 3: Cross multiply
   85,492.49x = 128,238.71 × 23,162.99
4. Step 4: Simplify right side
   85,492.49x = 2,970,391,200.33
5. Step 5: Solve for x
   x = 2,970,391,200.33/85,492.49
6. Step 6: Final answer
   x = 34,744.47