Finding the Fourth Proportional to 111,709.38, 167,683.42 and 45,192.98

Step by Step Solution

1. Step 1: Write the proportion equation
   111,709.38 : 167,683.42 = 45,192.98 : x
2. Step 2: Convert to fraction form
   111,709.38/167,683.42 = 45,192.98/x
3. Step 3: Cross multiply
   111,709.38x = 167,683.42 × 45,192.98
4. Step 4: Simplify right side
   111,709.38x = 7,578,113,446.39
5. Step 5: Solve for x
   x = 7,578,113,446.39/111,709.38
6. Step 6: Final answer
   x = 67,837.75