Finding the Fourth Proportional to 142,904.25, 197,210.59 and 78,369.41

Step by Step Solution

1. Step 1: Write the proportion equation
   142,904.25 : 197,210.59 = 78,369.41 : x
2. Step 2: Convert to fraction form
   142,904.25/197,210.59 = 78,369.41/x
3. Step 3: Cross multiply
   142,904.25x = 197,210.59 × 78,369.41
4. Step 4: Simplify right side
   142,904.25x = 15,455,277,881.15
5. Step 5: Solve for x
   x = 15,455,277,881.15/142,904.25
6. Step 6: Final answer
   x = 108,151.28