Finding the Fourth Proportional to 13,705.02, 18,912.83 and 7,417.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,705.02 : 18,912.83 = 7,417.35 : x
2. Step 2: Convert to fraction form
   13,705.02/18,912.83 = 7,417.35/x
3. Step 3: Cross multiply
   13,705.02x = 18,912.83 × 7,417.35
4. Step 4: Simplify right side
   13,705.02x = 140,283,042.51
5. Step 5: Solve for x
   x = 140,283,042.51/13,705.02
6. Step 6: Final answer
   x = 10,235.89