Finding the Fourth Proportional to 10,518.77, 15,773.53 and 3,940.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,518.77 : 15,773.53 = 3,940.34 : x
2. Step 2: Convert to fraction form
   10,518.77/15,773.53 = 3,940.34/x
3. Step 3: Cross multiply
   10,518.77x = 15,773.53 × 3,940.34
4. Step 4: Simplify right side
   10,518.77x = 62,152,972.63
5. Step 5: Solve for x
   x = 62,152,972.63/10,518.77
6. Step 6: Final answer
   x = 5,908.77