Finding the Fourth Proportional to 9,835.72, 13,558.98 and 7,946.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,835.72 : 13,558.98 = 7,946.92 : x
2. Step 2: Convert to fraction form
   9,835.72/13,558.98 = 7,946.92/x
3. Step 3: Cross multiply
   9,835.72x = 13,558.98 × 7,946.92
4. Step 4: Simplify right side
   9,835.72x = 107,752,129.34
5. Step 5: Solve for x
   x = 107,752,129.34/9,835.72
6. Step 6: Final answer
   x = 10,955.18