Finding the Fourth Proportional to 9,931.93, 13,705.53 and 5,456.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.93 : 13,705.53 = 5,456.29 : x
2. Step 2: Convert to fraction form
   9,931.93/13,705.53 = 5,456.29/x
3. Step 3: Cross multiply
   9,931.93x = 13,705.53 × 5,456.29
4. Step 4: Simplify right side
   9,931.93x = 74,781,346.28
5. Step 5: Solve for x
   x = 74,781,346.28/9,931.93
6. Step 6: Final answer
   x = 7,529.39