Finding the Fourth Proportional to 9,935.51, 14,896.37 and 8,385.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,935.51 : 14,896.37 = 8,385.57 : x
2. Step 2: Convert to fraction form
   9,935.51/14,896.37 = 8,385.57/x
3. Step 3: Cross multiply
   9,935.51x = 14,896.37 × 8,385.57
4. Step 4: Simplify right side
   9,935.51x = 124,914,574.34
5. Step 5: Solve for x
   x = 124,914,574.34/9,935.51
6. Step 6: Final answer
   x = 12,572.54