Finding the Fourth Proportional to 60,978.36, 91,464.78 and 23,531.56

Step by Step Solution

1. Step 1: Write the proportion equation
   60,978.36 : 91,464.78 = 23,531.56 : x
2. Step 2: Convert to fraction form
   60,978.36/91,464.78 = 23,531.56/x
3. Step 3: Cross multiply
   60,978.36x = 91,464.78 × 23,531.56
4. Step 4: Simplify right side
   60,978.36x = 2,152,308,958.46
5. Step 5: Solve for x
   x = 2,152,308,958.46/60,978.36
6. Step 6: Final answer
   x = 35,296.27