Finding the Fourth Proportional to 40,236.78, 55,513.91 and 23,238.78

Step by Step Solution

1. Step 1: Write the proportion equation
   40,236.78 : 55,513.91 = 23,238.78 : x
2. Step 2: Convert to fraction form
   40,236.78/55,513.91 = 23,238.78/x
3. Step 3: Cross multiply
   40,236.78x = 55,513.91 × 23,238.78
4. Step 4: Simplify right side
   40,236.78x = 1,290,075,572.90
5. Step 5: Solve for x
   x = 1,290,075,572.90/40,236.78
6. Step 6: Final answer
   x = 32,062.09