Finding the Fourth Proportional to 79,978.64, 119,781.12 and 63,226.16

Step by Step Solution

1. Step 1: Write the proportion equation
   79,978.64 : 119,781.12 = 63,226.16 : x
2. Step 2: Convert to fraction form
   79,978.64/119,781.12 = 63,226.16/x
3. Step 3: Cross multiply
   79,978.64x = 119,781.12 × 63,226.16
4. Step 4: Simplify right side
   79,978.64x = 7,573,300,258.10
5. Step 5: Solve for x
   x = 7,573,300,258.10/79,978.64
6. Step 6: Final answer
   x = 94,691.54