Finding the Fourth Proportional to 8,100.71, 12,150.61 and 2,553.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,100.71 : 12,150.61 = 2,553.93 : x
2. Step 2: Convert to fraction form
   8,100.71/12,150.61 = 2,553.93/x
3. Step 3: Cross multiply
   8,100.71x = 12,150.61 × 2,553.93
4. Step 4: Simplify right side
   8,100.71x = 31,031,801.01
5. Step 5: Solve for x
   x = 31,031,801.01/8,100.71
6. Step 6: Final answer
   x = 3,830.75