Finding the Fourth Proportional to 11,111.34, 16,670.66 and 4,543.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.34 : 16,670.66 = 4,543.05 : x
2. Step 2: Convert to fraction form
   11,111.34/16,670.66 = 4,543.05/x
3. Step 3: Cross multiply
   11,111.34x = 16,670.66 × 4,543.05
4. Step 4: Simplify right side
   11,111.34x = 75,735,641.91
5. Step 5: Solve for x
   x = 75,735,641.91/11,111.34
6. Step 6: Final answer
   x = 6,816.07