Finding the Fourth Proportional to 5,123.84, 7,072.38 and 3,355.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.84 : 7,072.38 = 3,355.56 : x
2. Step 2: Convert to fraction form
   5,123.84/7,072.38 = 3,355.56/x
3. Step 3: Cross multiply
   5,123.84x = 7,072.38 × 3,355.56
4. Step 4: Simplify right side
   5,123.84x = 23,731,795.43
5. Step 5: Solve for x
   x = 23,731,795.43/5,123.84
6. Step 6: Final answer
   x = 4,631.65