Finding the Fourth Proportional to 108,131.51, 149,215.29 and 64,573.22

Step by Step Solution

1. Step 1: Write the proportion equation
   108,131.51 : 149,215.29 = 64,573.22 : x
2. Step 2: Convert to fraction form
   108,131.51/149,215.29 = 64,573.22/x
3. Step 3: Cross multiply
   108,131.51x = 149,215.29 × 64,573.22
4. Step 4: Simplify right side
   108,131.51x = 9,635,311,002.46
5. Step 5: Solve for x
   x = 9,635,311,002.46/108,131.51
6. Step 6: Final answer
   x = 89,107.34