Finding the Fourth Proportional to 78.00, 116.44 and 72.37

Step by Step Solution

1. Step 1: Write the proportion equation
   78.00 : 116.44 = 72.37 : x
2. Step 2: Convert to fraction form
   78.00/116.44 = 72.37/x
3. Step 3: Cross multiply
   78.00x = 116.44 × 72.37
4. Step 4: Simplify right side
   78.00x = 8,426.40
5. Step 5: Solve for x
   x = 8,426.40/78.00
6. Step 6: Final answer
   x = 108.04