Finding the Fourth Proportional to 7,145.51, 10,714.04 and 2,927.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,145.51 : 10,714.04 = 2,927.50 : x
2. Step 2: Convert to fraction form
   7,145.51/10,714.04 = 2,927.50/x
3. Step 3: Cross multiply
   7,145.51x = 10,714.04 × 2,927.50
4. Step 4: Simplify right side
   7,145.51x = 31,365,389.27
5. Step 5: Solve for x
   x = 31,365,389.27/7,145.51
6. Step 6: Final answer
   x = 4,389.52