Finding the Fourth Proportional to 14,258.13, 19,676.82 and 7,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,258.13 : 19,676.82 = 7,970.50 : x
2. Step 2: Convert to fraction form
   14,258.13/19,676.82 = 7,970.50/x
3. Step 3: Cross multiply
   14,258.13x = 19,676.82 × 7,970.50
4. Step 4: Simplify right side
   14,258.13x = 156,834,093.81
5. Step 5: Solve for x
   x = 156,834,093.81/14,258.13
6. Step 6: Final answer
   x = 10,999.63