Finding the Fourth Proportional to 85,436.02, 128,153.76 and 23,106.52

Step by Step Solution

1. Step 1: Write the proportion equation
   85,436.02 : 128,153.76 = 23,106.52 : x
2. Step 2: Convert to fraction form
   85,436.02/128,153.76 = 23,106.52/x
3. Step 3: Cross multiply
   85,436.02x = 128,153.76 × 23,106.52
4. Step 4: Simplify right side
   85,436.02x = 2,961,187,418.52
5. Step 5: Solve for x
   x = 2,961,187,418.52/85,436.02
6. Step 6: Final answer
   x = 34,659.71