Finding the Fourth Proportional to 196,071.50, 294,150.99 and 71,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,071.50 : 294,150.99 = 71,412.50 : x
2. Step 2: Convert to fraction form
   196,071.50/294,150.99 = 71,412.50/x
3. Step 3: Cross multiply
   196,071.50x = 294,150.99 × 71,412.50
4. Step 4: Simplify right side
   196,071.50x = 21,006,057,573.38
5. Step 5: Solve for x
   x = 21,006,057,573.38/196,071.50
6. Step 6: Final answer
   x = 107,134.68