Finding the Fourth Proportional to 15,897.52, 21,942.86 and 9,925.59

Step by Step Solution

1. Step 1: Write the proportion equation
   15,897.52 : 21,942.86 = 9,925.59 : x
2. Step 2: Convert to fraction form
   15,897.52/21,942.86 = 9,925.59/x
3. Step 3: Cross multiply
   15,897.52x = 21,942.86 × 9,925.59
4. Step 4: Simplify right side
   15,897.52x = 217,795,831.79
5. Step 5: Solve for x
   x = 217,795,831.79/15,897.52
6. Step 6: Final answer
   x = 13,699.99