Finding the Fourth Proportional to 10,131.93, 15,187.57 and 3,890.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.93 : 15,187.57 = 3,890.34 : x
2. Step 2: Convert to fraction form
   10,131.93/15,187.57 = 3,890.34/x
3. Step 3: Cross multiply
   10,131.93x = 15,187.57 × 3,890.34
4. Step 4: Simplify right side
   10,131.93x = 59,084,801.35
5. Step 5: Solve for x
   x = 59,084,801.35/10,131.93
6. Step 6: Final answer
   x = 5,831.54