Finding the Fourth Proportional to 9,116.10, 13,663.35 and 4,731.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.10 : 13,663.35 = 4,731.30 : x
2. Step 2: Convert to fraction form
   9,116.10/13,663.35 = 4,731.30/x
3. Step 3: Cross multiply
   9,116.10x = 13,663.35 × 4,731.30
4. Step 4: Simplify right side
   9,116.10x = 64,645,407.86
5. Step 5: Solve for x
   x = 64,645,407.86/9,116.10
6. Step 6: Final answer
   x = 7,091.34