Finding the Fourth Proportional to 14,870.67, 20,520.72 and 8,155.95

Step by Step Solution

1. Step 1: Write the proportion equation
   14,870.67 : 20,520.72 = 8,155.95 : x
2. Step 2: Convert to fraction form
   14,870.67/20,520.72 = 8,155.95/x
3. Step 3: Cross multiply
   14,870.67x = 20,520.72 × 8,155.95
4. Step 4: Simplify right side
   14,870.67x = 167,365,966.28
5. Step 5: Solve for x
   x = 167,365,966.28/14,870.67
6. Step 6: Final answer
   x = 11,254.77