Finding the Fourth Proportional to 180,086.72, 270,141.60 and 69,278.72

Step by Step Solution

1. Step 1: Write the proportion equation
   180,086.72 : 270,141.60 = 69,278.72 : x
2. Step 2: Convert to fraction form
   180,086.72/270,141.60 = 69,278.72/x
3. Step 3: Cross multiply
   180,086.72x = 270,141.60 × 69,278.72
4. Step 4: Simplify right side
   180,086.72x = 18,715,064,266.75
5. Step 5: Solve for x
   x = 18,715,064,266.75/180,086.72
6. Step 6: Final answer
   x = 103,922.51