Finding the Fourth Proportional to 110,010.72, 164,898 and 72,045.48

Step by Step Solution

1. Step 1: Write the proportion equation
   110,010.72 : 164,898 = 72,045.48 : x
2. Step 2: Convert to fraction form
   110,010.72/164,898 = 72,045.48/x
3. Step 3: Cross multiply
   110,010.72x = 164,898 × 72,045.48
4. Step 4: Simplify right side
   110,010.72x = 11,880,155,561.04
5. Step 5: Solve for x
   x = 11,880,155,561.04/110,010.72
6. Step 6: Final answer
   x = 107,990.89