Finding the Fourth Proportional to 13,459.98, 20,191.01 and 4,100.79

Step by Step Solution

1. Step 1: Write the proportion equation
   13,459.98 : 20,191.01 = 4,100.79 : x
2. Step 2: Convert to fraction form
   13,459.98/20,191.01 = 4,100.79/x
3. Step 3: Cross multiply
   13,459.98x = 20,191.01 × 4,100.79
4. Step 4: Simplify right side
   13,459.98x = 82,799,091.90
5. Step 5: Solve for x
   x = 82,799,091.90/13,459.98
6. Step 6: Final answer
   x = 6,151.50