Finding the Fourth Proportional to 108,132.01, 149,215.99 and 64,573.72

Step by Step Solution

1. Step 1: Write the proportion equation
   108,132.01 : 149,215.99 = 64,573.72 : x
2. Step 2: Convert to fraction form
   108,132.01/149,215.99 = 64,573.72/x
3. Step 3: Cross multiply
   108,132.01x = 149,215.99 × 64,573.72
4. Step 4: Simplify right side
   108,132.01x = 9,635,431,557.78
5. Step 5: Solve for x
   x = 9,635,431,557.78/108,132.01
6. Step 6: Final answer
   x = 89,108.04