Finding the Fourth Proportional to 468,978.72, 703,461.96 and 113,991.72

Step by Step Solution

1. Step 1: Write the proportion equation
   468,978.72 : 703,461.96 = 113,991.72 : x
2. Step 2: Convert to fraction form
   468,978.72/703,461.96 = 113,991.72/x
3. Step 3: Cross multiply
   468,978.72x = 703,461.96 × 113,991.72
4. Step 4: Simplify right side
   468,978.72x = 80,188,838,774.97
5. Step 5: Solve for x
   x = 80,188,838,774.97/468,978.72
6. Step 6: Final answer
   x = 170,986.09