Finding the Fourth Proportional to 142,607.37, 196,800.50 and 78,075.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,607.37 : 196,800.50 = 78,075.52 : x
2. Step 2: Convert to fraction form
   142,607.37/196,800.50 = 78,075.52/x
3. Step 3: Cross multiply
   142,607.37x = 196,800.50 × 78,075.52
4. Step 4: Simplify right side
   142,607.37x = 15,365,301,373.76
5. Step 5: Solve for x
   x = 15,365,301,373.76/142,607.37
6. Step 6: Final answer
   x = 107,745.49