Finding the Fourth Proportional to 13,733.86, 18,952.51 and 7,765.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,733.86 : 18,952.51 = 7,765.30 : x
2. Step 2: Convert to fraction form
   13,733.86/18,952.51 = 7,765.30/x
3. Step 3: Cross multiply
   13,733.86x = 18,952.51 × 7,765.30
4. Step 4: Simplify right side
   13,733.86x = 147,171,925.90
5. Step 5: Solve for x
   x = 147,171,925.90/13,733.86
6. Step 6: Final answer
   x = 10,715.99