Finding the Fourth Proportional to 72,333.02, 108,289.35 and 64,736.61

Step by Step Solution

1. Step 1: Write the proportion equation
   72,333.02 : 108,289.35 = 64,736.61 : x
2. Step 2: Convert to fraction form
   72,333.02/108,289.35 = 64,736.61/x
3. Step 3: Cross multiply
   72,333.02x = 108,289.35 × 64,736.61
4. Step 4: Simplify right side
   72,333.02x = 7,010,285,418.10
5. Step 5: Solve for x
   x = 7,010,285,418.10/72,333.02
6. Step 6: Final answer
   x = 96,916.81