Finding the Fourth Proportional to 142,064.06, 196,047.50 and 78,401.84

Step by Step Solution

1. Step 1: Write the proportion equation
   142,064.06 : 196,047.50 = 78,401.84 : x
2. Step 2: Convert to fraction form
   142,064.06/196,047.50 = 78,401.84/x
3. Step 3: Cross multiply
   142,064.06x = 196,047.50 × 78,401.84
4. Step 4: Simplify right side
   142,064.06x = 15,370,484,727.40
5. Step 5: Solve for x
   x = 15,370,484,727.40/142,064.06
6. Step 6: Final answer
   x = 108,194.04