Finding the Fourth Proportional to 13,258.03, 19,886.58 and 3,397.40

Step by Step Solution

1. Step 1: Write the proportion equation
   13,258.03 : 19,886.58 = 3,397.40 : x
2. Step 2: Convert to fraction form
   13,258.03/19,886.58 = 3,397.40/x
3. Step 3: Cross multiply
   13,258.03x = 19,886.58 × 3,397.40
4. Step 4: Simplify right side
   13,258.03x = 67,562,666.89
5. Step 5: Solve for x
   x = 67,562,666.89/13,258.03
6. Step 6: Final answer
   x = 5,095.98