Finding the Fourth Proportional to 60,978.45, 91,481.12 and 18,282.18

Step by Step Solution

1. Step 1: Write the proportion equation
   60,978.45 : 91,481.12 = 18,282.18 : x
2. Step 2: Convert to fraction form
   60,978.45/91,481.12 = 18,282.18/x
3. Step 3: Cross multiply
   60,978.45x = 91,481.12 × 18,282.18
4. Step 4: Simplify right side
   60,978.45x = 1,672,474,279.59
5. Step 5: Solve for x
   x = 1,672,474,279.59/60,978.45
6. Step 6: Final answer
   x = 27,427.30