Finding the Fourth Proportional to 9,885.39, 13,633.72 and 7,051.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.39 : 13,633.72 = 7,051.86 : x
2. Step 2: Convert to fraction form
   9,885.39/13,633.72 = 7,051.86/x
3. Step 3: Cross multiply
   9,885.39x = 13,633.72 × 7,051.86
4. Step 4: Simplify right side
   9,885.39x = 96,143,084.72
5. Step 5: Solve for x
   x = 96,143,084.72/9,885.39
6. Step 6: Final answer
   x = 9,725.78