Finding the Fourth Proportional to 13,773.54, 20,656.62 and 5,980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,773.54 : 20,656.62 = 5,980.50 : x
2. Step 2: Convert to fraction form
   13,773.54/20,656.62 = 5,980.50/x
3. Step 3: Cross multiply
   13,773.54x = 20,656.62 × 5,980.50
4. Step 4: Simplify right side
   13,773.54x = 123,536,915.91
5. Step 5: Solve for x
   x = 123,536,915.91/13,773.54
6. Step 6: Final answer
   x = 8,969.15