Finding the Fourth Proportional to 11,410.57, 17,111.18 and 4,742.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,410.57 : 17,111.18 = 4,742.50 : x
2. Step 2: Convert to fraction form
   11,410.57/17,111.18 = 4,742.50/x
3. Step 3: Cross multiply
   11,410.57x = 17,111.18 × 4,742.50
4. Step 4: Simplify right side
   11,410.57x = 81,149,772.31
5. Step 5: Solve for x
   x = 81,149,772.31/11,410.57
6. Step 6: Final answer
   x = 7,111.81