Finding the Fourth Proportional to 142,356.57, 196,460.54 and 81,925.89

Step by Step Solution

1. Step 1: Write the proportion equation
   142,356.57 : 196,460.54 = 81,925.89 : x
2. Step 2: Convert to fraction form
   142,356.57/196,460.54 = 81,925.89/x
3. Step 3: Cross multiply
   142,356.57x = 196,460.54 × 81,925.89
4. Step 4: Simplify right side
   142,356.57x = 16,095,204,589.38
5. Step 5: Solve for x
   x = 16,095,204,589.38/142,356.57
6. Step 6: Final answer
   x = 113,062.60