Finding the Fourth Proportional to 12,381.86, 17,086.64 and 6,792.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,381.86 : 17,086.64 = 6,792.50 : x
2. Step 2: Convert to fraction form
   12,381.86/17,086.64 = 6,792.50/x
3. Step 3: Cross multiply
   12,381.86x = 17,086.64 × 6,792.50
4. Step 4: Simplify right side
   12,381.86x = 116,061,002.20
5. Step 5: Solve for x
   x = 116,061,002.20/12,381.86
6. Step 6: Final answer
   x = 9,373.47