Finding the Fourth Proportional to 9,341.72, 13,908.86 and 9,210.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,341.72 : 13,908.86 = 9,210.96 : x
2. Step 2: Convert to fraction form
   9,341.72/13,908.86 = 9,210.96/x
3. Step 3: Cross multiply
   9,341.72x = 13,908.86 × 9,210.96
4. Step 4: Simplify right side
   9,341.72x = 128,113,953.11
5. Step 5: Solve for x
   x = 128,113,953.11/9,341.72
6. Step 6: Final answer
   x = 13,714.17