Finding the Fourth Proportional to 4,787.32, 7,178.56 and 2,940.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,787.32 : 7,178.56 = 2,940.52 : x
2. Step 2: Convert to fraction form
   4,787.32/7,178.56 = 2,940.52/x
3. Step 3: Cross multiply
   4,787.32x = 7,178.56 × 2,940.52
4. Step 4: Simplify right side
   4,787.32x = 21,108,699.25
5. Step 5: Solve for x
   x = 21,108,699.25/4,787.32
6. Step 6: Final answer
   x = 4,409.29