Finding the Fourth Proportional to 11,108.61, 16,667.52 and 4,865.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,108.61 : 16,667.52 = 4,865.40 : x
2. Step 2: Convert to fraction form
   11,108.61/16,667.52 = 4,865.40/x
3. Step 3: Cross multiply
   11,108.61x = 16,667.52 × 4,865.40
4. Step 4: Simplify right side
   11,108.61x = 81,094,151.81
5. Step 5: Solve for x
   x = 81,094,151.81/11,108.61
6. Step 6: Final answer
   x = 7,300.12