Finding the Fourth Proportional to 85,382.72, 128,058.40 and 23,038.56

Step by Step Solution

1. Step 1: Write the proportion equation
   85,382.72 : 128,058.40 = 23,038.56 : x
2. Step 2: Convert to fraction form
   85,382.72/128,058.40 = 23,038.56/x
3. Step 3: Cross multiply
   85,382.72x = 128,058.40 × 23,038.56
4. Step 4: Simplify right side
   85,382.72x = 2,950,281,131.90
5. Step 5: Solve for x
   x = 2,950,281,131.90/85,382.72
6. Step 6: Final answer
   x = 34,553.61