Finding the Fourth Proportional to 25,665.86, 35,401.64 and 19,308.98

Step by Step Solution

1. Step 1: Write the proportion equation
   25,665.86 : 35,401.64 = 19,308.98 : x
2. Step 2: Convert to fraction form
   25,665.86/35,401.64 = 19,308.98/x
3. Step 3: Cross multiply
   25,665.86x = 35,401.64 × 19,308.98
4. Step 4: Simplify right side
   25,665.86x = 683,569,558.73
5. Step 5: Solve for x
   x = 683,569,558.73/25,665.86
6. Step 6: Final answer
   x = 26,633.42