Finding the Fourth Proportional to 106,978.50, 147,630.42 and 62,266.50

Step by Step Solution

1. Step 1: Write the proportion equation
   106,978.50 : 147,630.42 = 62,266.50 : x
2. Step 2: Convert to fraction form
   106,978.50/147,630.42 = 62,266.50/x
3. Step 3: Cross multiply
   106,978.50x = 147,630.42 × 62,266.50
4. Step 4: Simplify right side
   106,978.50x = 9,192,429,546.93
5. Step 5: Solve for x
   x = 9,192,429,546.93/106,978.50
6. Step 6: Final answer
   x = 85,927.82