Finding the Fourth Proportional to 142,362.37, 196,454.59 and 85,011.33

Step by Step Solution

1. Step 1: Write the proportion equation
   142,362.37 : 196,454.59 = 85,011.33 : x
2. Step 2: Convert to fraction form
   142,362.37/196,454.59 = 85,011.33/x
3. Step 3: Cross multiply
   142,362.37x = 196,454.59 × 85,011.33
4. Step 4: Simplify right side
   142,362.37x = 16,700,865,767.98
5. Step 5: Solve for x
   x = 16,700,865,767.98/142,362.37
6. Step 6: Final answer
   x = 117,312.36