Finding the Fourth Proportional to 111,131.09, 166,528.25 and 73,556.55

Step by Step Solution

1. Step 1: Write the proportion equation
   111,131.09 : 166,528.25 = 73,556.55 : x
2. Step 2: Convert to fraction form
   111,131.09/166,528.25 = 73,556.55/x
3. Step 3: Cross multiply
   111,131.09x = 166,528.25 × 73,556.55
4. Step 4: Simplify right side
   111,131.09x = 12,249,242,347.11
5. Step 5: Solve for x
   x = 12,249,242,347.11/111,131.09
6. Step 6: Final answer
   x = 110,223.37