Finding the Fourth Proportional to 78,519.32, 108,346.82 and 53,081.03

Step by Step Solution

1. Step 1: Write the proportion equation
   78,519.32 : 108,346.82 = 53,081.03 : x
2. Step 2: Convert to fraction form
   78,519.32/108,346.82 = 53,081.03/x
3. Step 3: Cross multiply
   78,519.32x = 108,346.82 × 53,081.03
4. Step 4: Simplify right side
   78,519.32x = 5,751,160,808.29
5. Step 5: Solve for x
   x = 5,751,160,808.29/78,519.32
6. Step 6: Final answer
   x = 73,245.17