Finding the Fourth Proportional to 109,666.97, 151,341.46 and 64,345.72

Step by Step Solution

1. Step 1: Write the proportion equation
   109,666.97 : 151,341.46 = 64,345.72 : x
2. Step 2: Convert to fraction form
   109,666.97/151,341.46 = 64,345.72/x
3. Step 3: Cross multiply
   109,666.97x = 151,341.46 × 64,345.72
4. Step 4: Simplify right side
   109,666.97x = 9,738,175,048.69
5. Step 5: Solve for x
   x = 9,738,175,048.69/109,666.97
6. Step 6: Final answer
   x = 88,797.71