Finding the Fourth Proportional to 106,978.96, 147,541.28 and 68,744.72

Step by Step Solution

1. Step 1: Write the proportion equation
   106,978.96 : 147,541.28 = 68,744.72 : x
2. Step 2: Convert to fraction form
   106,978.96/147,541.28 = 68,744.72/x
3. Step 3: Cross multiply
   106,978.96x = 147,541.28 × 68,744.72
4. Step 4: Simplify right side
   106,978.96x = 10,142,683,982.04
5. Step 5: Solve for x
   x = 10,142,683,982.04/106,978.96
6. Step 6: Final answer
   x = 94,810.08