Finding the Fourth Proportional to 11,873.16, 16,388.37 and 7,842.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,873.16 : 16,388.37 = 7,842.93 : x
2. Step 2: Convert to fraction form
   11,873.16/16,388.37 = 7,842.93/x
3. Step 3: Cross multiply
   11,873.16x = 16,388.37 × 7,842.93
4. Step 4: Simplify right side
   11,873.16x = 128,532,838.72
5. Step 5: Solve for x
   x = 128,532,838.72/11,873.16
6. Step 6: Final answer
   x = 10,825.50