Finding the Fourth Proportional to 142,093.72, 196,075.37 and 78,427.41

Step by Step Solution

1. Step 1: Write the proportion equation
   142,093.72 : 196,075.37 = 78,427.41 : x
2. Step 2: Convert to fraction form
   142,093.72/196,075.37 = 78,427.41/x
3. Step 3: Cross multiply
   142,093.72x = 196,075.37 × 78,427.41
4. Step 4: Simplify right side
   142,093.72x = 15,377,683,728.01
5. Step 5: Solve for x
   x = 15,377,683,728.01/142,093.72
6. Step 6: Final answer
   x = 108,222.12