Finding the Fourth Proportional to 7,527.90, 10,385.43 and 5,427.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,527.90 : 10,385.43 = 5,427.42 : x
2. Step 2: Convert to fraction form
   7,527.90/10,385.43 = 5,427.42/x
3. Step 3: Cross multiply
   7,527.90x = 10,385.43 × 5,427.42
4. Step 4: Simplify right side
   7,527.90x = 56,366,090.49
5. Step 5: Solve for x
   x = 56,366,090.49/7,527.90
6. Step 6: Final answer
   x = 7,487.62