Finding the Fourth Proportional to 111,361.69, 153,638.85 and 73,141.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111,361.69 : 153,638.85 = 73,141.94 : x
2. Step 2: Convert to fraction form
   111,361.69/153,638.85 = 73,141.94/x
3. Step 3: Cross multiply
   111,361.69x = 153,638.85 × 73,141.94
4. Step 4: Simplify right side
   111,361.69x = 11,237,443,136.82
5. Step 5: Solve for x
   x = 11,237,443,136.82/111,361.69
6. Step 6: Final answer
   x = 100,909.42