Finding the Fourth Proportional to 142,748.40, 197,089.56 and 127,592.76

Step by Step Solution

1. Step 1: Write the proportion equation
   142,748.40 : 197,089.56 = 127,592.76 : x
2. Step 2: Convert to fraction form
   142,748.40/197,089.56 = 127,592.76/x
3. Step 3: Cross multiply
   142,748.40x = 197,089.56 × 127,592.76
4. Step 4: Simplify right side
   142,748.40x = 25,147,200,927.59
5. Step 5: Solve for x
   x = 25,147,200,927.59/142,748.40
6. Step 6: Final answer
   x = 176,164.50