Finding the Fourth Proportional to 111,131.98, 166,529.59 and 73,557.43

Step by Step Solution

1. Step 1: Write the proportion equation
   111,131.98 : 166,529.59 = 73,557.43 : x
2. Step 2: Convert to fraction form
   111,131.98/166,529.59 = 73,557.43/x
3. Step 3: Cross multiply
   111,131.98x = 166,529.59 × 73,557.43
4. Step 4: Simplify right side
   111,131.98x = 12,249,488,059.14
5. Step 5: Solve for x
   x = 12,249,488,059.14/111,131.98
6. Step 6: Final answer
   x = 110,224.69