Finding the Fourth Proportional to 108,756.25, 163,131.89 and 64,061.12

Step by Step Solution

1. Step 1: Write the proportion equation
   108,756.25 : 163,131.89 = 64,061.12 : x
2. Step 2: Convert to fraction form
   108,756.25/163,131.89 = 64,061.12/x
3. Step 3: Cross multiply
   108,756.25x = 163,131.89 × 64,061.12
4. Step 4: Simplify right side
   108,756.25x = 10,450,411,668.64
5. Step 5: Solve for x
   x = 10,450,411,668.64/108,756.25
6. Step 6: Final answer
   x = 96,090.22