Finding the Fourth Proportional to 109,621.67, 151,175.23 and 72,762.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,621.67 : 151,175.23 = 72,762.69 : x
2. Step 2: Convert to fraction form
   109,621.67/151,175.23 = 72,762.69/x
3. Step 3: Cross multiply
   109,621.67x = 151,175.23 × 72,762.69
4. Step 4: Simplify right side
   109,621.67x = 10,999,917,190.46
5. Step 5: Solve for x
   x = 10,999,917,190.46/109,621.67
6. Step 6: Final answer
   x = 100,344.37