Finding the Fourth Proportional to 72,578.02, 108,843.99 and 23,318.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,578.02 : 108,843.99 = 23,318.50 : x
2. Step 2: Convert to fraction form
   72,578.02/108,843.99 = 23,318.50/x
3. Step 3: Cross multiply
   72,578.02x = 108,843.99 × 23,318.50
4. Step 4: Simplify right side
   72,578.02x = 2,538,078,580.82
5. Step 5: Solve for x
   x = 2,538,078,580.82/72,578.02
6. Step 6: Final answer
   x = 34,970.35