Finding the Fourth Proportional to 106,978.24, 147,624.12 and 63,958.60

Step by Step Solution

1. Step 1: Write the proportion equation
   106,978.24 : 147,624.12 = 63,958.60 : x
2. Step 2: Convert to fraction form
   106,978.24/147,624.12 = 63,958.60/x
3. Step 3: Cross multiply
   106,978.24x = 147,624.12 × 63,958.60
4. Step 4: Simplify right side
   106,978.24x = 9,441,832,041.43
5. Step 5: Solve for x
   x = 9,441,832,041.43/106,978.24
6. Step 6: Final answer
   x = 88,259.37