Finding the Fourth Proportional to 79,746.32, 109,921.64 and 53,896.78

Step by Step Solution

1. Step 1: Write the proportion equation
   79,746.32 : 109,921.64 = 53,896.78 : x
2. Step 2: Convert to fraction form
   79,746.32/109,921.64 = 53,896.78/x
3. Step 3: Cross multiply
   79,746.32x = 109,921.64 × 53,896.78
4. Step 4: Simplify right side
   79,746.32x = 5,924,422,448.32
5. Step 5: Solve for x
   x = 5,924,422,448.32/79,746.32
6. Step 6: Final answer
   x = 74,290.86