Finding the Fourth Proportional to 35,258.71, 52,895.86 and 13,072.09

Step by Step Solution

1. Step 1: Write the proportion equation
   35,258.71 : 52,895.86 = 13,072.09 : x
2. Step 2: Convert to fraction form
   35,258.71/52,895.86 = 13,072.09/x
3. Step 3: Cross multiply
   35,258.71x = 52,895.86 × 13,072.09
4. Step 4: Simplify right side
   35,258.71x = 691,459,377.19
5. Step 5: Solve for x
   x = 691,459,377.19/35,258.71
6. Step 6: Final answer
   x = 19,611.02