Finding the Fourth Proportional to 142,374.13, 196,470.06 and 81,946.71

Step by Step Solution

1. Step 1: Write the proportion equation
   142,374.13 : 196,470.06 = 81,946.71 : x
2. Step 2: Convert to fraction form
   142,374.13/196,470.06 = 81,946.71/x
3. Step 3: Cross multiply
   142,374.13x = 196,470.06 × 81,946.71
4. Step 4: Simplify right side
   142,374.13x = 16,100,075,030.50
5. Step 5: Solve for x
   x = 16,100,075,030.50/142,374.13
6. Step 6: Final answer
   x = 113,082.87