Finding the Fourth Proportional to 5,654.31, 7,812.65 and 5,454.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,654.31 : 7,812.65 = 5,454.74 : x
2. Step 2: Convert to fraction form
   5,654.31/7,812.65 = 5,454.74/x
3. Step 3: Cross multiply
   5,654.31x = 7,812.65 × 5,454.74
4. Step 4: Simplify right side
   5,654.31x = 42,616,007.63
5. Step 5: Solve for x
   x = 42,616,007.63/5,654.31
6. Step 6: Final answer
   x = 7,536.91