Finding the Fourth Proportional to 45,116.55, 67,661.69 and 13,525.35

Step by Step Solution

1. Step 1: Write the proportion equation
   45,116.55 : 67,661.69 = 13,525.35 : x
2. Step 2: Convert to fraction form
   45,116.55/67,661.69 = 13,525.35/x
3. Step 3: Cross multiply
   45,116.55x = 67,661.69 × 13,525.35
4. Step 4: Simplify right side
   45,116.55x = 915,147,971.21
5. Step 5: Solve for x
   x = 915,147,971.21/45,116.55
6. Step 6: Final answer
   x = 20,284.09