Finding the Fourth Proportional to 8,335.61, 12,499.77 and 3,954.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,335.61 : 12,499.77 = 3,954.32 : x
2. Step 2: Convert to fraction form
   8,335.61/12,499.77 = 3,954.32/x
3. Step 3: Cross multiply
   8,335.61x = 12,499.77 × 3,954.32
4. Step 4: Simplify right side
   8,335.61x = 49,428,090.51
5. Step 5: Solve for x
   x = 49,428,090.51/8,335.61
6. Step 6: Final answer
   x = 5,929.75