Finding the Fourth Proportional to 11,447.58, 17,165.88 and 4,870.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,447.58 : 17,165.88 = 4,870.20 : x
2. Step 2: Convert to fraction form
   11,447.58/17,165.88 = 4,870.20/x
3. Step 3: Cross multiply
   11,447.58x = 17,165.88 × 4,870.20
4. Step 4: Simplify right side
   11,447.58x = 83,601,268.78
5. Step 5: Solve for x
   x = 83,601,268.78/11,447.58
6. Step 6: Final answer
   x = 7,302.96