Finding the Fourth Proportional to 85,814.98, 128,722.49 and 23,485.48

Step by Step Solution

1. Step 1: Write the proportion equation
   85,814.98 : 128,722.49 = 23,485.48 : x
2. Step 2: Convert to fraction form
   85,814.98/128,722.49 = 23,485.48/x
3. Step 3: Cross multiply
   85,814.98x = 128,722.49 × 23,485.48
4. Step 4: Simplify right side
   85,814.98x = 3,023,109,464.45
5. Step 5: Solve for x
   x = 3,023,109,464.45/85,814.98
6. Step 6: Final answer
   x = 35,228.23