Finding the Fourth Proportional to 12,496.30, 18,742.29 and 4,705.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,496.30 : 18,742.29 = 4,705.18 : x
2. Step 2: Convert to fraction form
   12,496.30/18,742.29 = 4,705.18/x
3. Step 3: Cross multiply
   12,496.30x = 18,742.29 × 4,705.18
4. Step 4: Simplify right side
   12,496.30x = 88,185,848.06
5. Step 5: Solve for x
   x = 88,185,848.06/12,496.30
6. Step 6: Final answer
   x = 7,056.96