Finding the Fourth Proportional to 74,147.42, 111,243.82 and 21,557.36

Step by Step Solution

1. Step 1: Write the proportion equation
   74,147.42 : 111,243.82 = 21,557.36 : x
2. Step 2: Convert to fraction form
   74,147.42/111,243.82 = 21,557.36/x
3. Step 3: Cross multiply
   74,147.42x = 111,243.82 × 21,557.36
4. Step 4: Simplify right side
   74,147.42x = 2,398,123,075.52
5. Step 5: Solve for x
   x = 2,398,123,075.52/74,147.42
6. Step 6: Final answer
   x = 32,342.64