Finding the Fourth Proportional to 8,387.02, 12,562.75 and 5,742.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,387.02 : 12,562.75 = 5,742.12 : x
2. Step 2: Convert to fraction form
   8,387.02/12,562.75 = 5,742.12/x
3. Step 3: Cross multiply
   8,387.02x = 12,562.75 × 5,742.12
4. Step 4: Simplify right side
   8,387.02x = 72,136,818.03
5. Step 5: Solve for x
   x = 72,136,818.03/8,387.02
6. Step 6: Final answer
   x = 8,601.01