Finding the Fourth Proportional to 11,328.71, 16,994.79 and 5,779.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,328.71 : 16,994.79 = 5,779.02 : x
2. Step 2: Convert to fraction form
   11,328.71/16,994.79 = 5,779.02/x
3. Step 3: Cross multiply
   11,328.71x = 16,994.79 × 5,779.02
4. Step 4: Simplify right side
   11,328.71x = 98,213,319.10
5. Step 5: Solve for x
   x = 98,213,319.10/11,328.71
6. Step 6: Final answer
   x = 8,669.42