Finding the Fourth Proportional to 17,091.60, 23,582.62 and 9,917.35

Step by Step Solution

1. Step 1: Write the proportion equation
   17,091.60 : 23,582.62 = 9,917.35 : x
2. Step 2: Convert to fraction form
   17,091.60/23,582.62 = 9,917.35/x
3. Step 3: Cross multiply
   17,091.60x = 23,582.62 × 9,917.35
4. Step 4: Simplify right side
   17,091.60x = 233,877,096.46
5. Step 5: Solve for x
   x = 233,877,096.46/17,091.60
6. Step 6: Final answer
   x = 13,683.75