Finding the Fourth Proportional to 13,402.88, 18,495.98 and 7,814.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,402.88 : 18,495.98 = 7,814.96 : x
2. Step 2: Convert to fraction form
   13,402.88/18,495.98 = 7,814.96/x
3. Step 3: Cross multiply
   13,402.88x = 18,495.98 × 7,814.96
4. Step 4: Simplify right side
   13,402.88x = 144,545,270.92
5. Step 5: Solve for x
   x = 144,545,270.92/13,402.88
6. Step 6: Final answer
   x = 10,784.65