Finding the Fourth Proportional to 108,132.51, 149,216.67 and 64,574.22

Step by Step Solution

1. Step 1: Write the proportion equation
   108,132.51 : 149,216.67 = 64,574.22 : x
2. Step 2: Convert to fraction form
   108,132.51/149,216.67 = 64,574.22/x
3. Step 3: Cross multiply
   108,132.51x = 149,216.67 × 64,574.22
4. Step 4: Simplify right side
   108,132.51x = 9,635,550,076.25
5. Step 5: Solve for x
   x = 9,635,550,076.25/108,132.51
6. Step 6: Final answer
   x = 89,108.72