Finding the Fourth Proportional to 79,300.12, 109,417.62 and 53,826.20

Step by Step Solution

1. Step 1: Write the proportion equation
   79,300.12 : 109,417.62 = 53,826.20 : x
2. Step 2: Convert to fraction form
   79,300.12/109,417.62 = 53,826.20/x
3. Step 3: Cross multiply
   79,300.12x = 109,417.62 × 53,826.20
4. Step 4: Simplify right side
   79,300.12x = 5,889,534,697.64
5. Step 5: Solve for x
   x = 5,889,534,697.64/79,300.12
6. Step 6: Final answer
   x = 74,268.93