Finding the Fourth Proportional to 11,892.48, 16,385.18 and 7,852.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892.48 : 16,385.18 = 7,852.13 : x
2. Step 2: Convert to fraction form
   11,892.48/16,385.18 = 7,852.13/x
3. Step 3: Cross multiply
   11,892.48x = 16,385.18 × 7,852.13
4. Step 4: Simplify right side
   11,892.48x = 128,658,563.43
5. Step 5: Solve for x
   x = 128,658,563.43/11,892.48
6. Step 6: Final answer
   x = 10,818.48