Finding the Fourth Proportional to 142,663.06, 196,876.34 and 86,063.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,663.06 : 196,876.34 = 86,063.50 : x
2. Step 2: Convert to fraction form
   142,663.06/196,876.34 = 86,063.50/x
3. Step 3: Cross multiply
   142,663.06x = 196,876.34 × 86,063.50
4. Step 4: Simplify right side
   142,663.06x = 16,943,866,887.59
5. Step 5: Solve for x
   x = 16,943,866,887.59/142,663.06
6. Step 6: Final answer
   x = 118,768.42