Finding the Fourth Proportional to 85,768.30, 128,658.78 and 22,588.00

Step by Step Solution

1. Step 1: Write the proportion equation
   85,768.30 : 128,658.78 = 22,588.00 : x
2. Step 2: Convert to fraction form
   85,768.30/128,658.78 = 22,588.00/x
3. Step 3: Cross multiply
   85,768.30x = 128,658.78 × 22,588.00
4. Step 4: Simplify right side
   85,768.30x = 2,906,144,200.99
5. Step 5: Solve for x
   x = 2,906,144,200.99/85,768.30
6. Step 6: Final answer
   x = 33,883.66