Finding the Fourth Proportional to 77,326.50, 115,976.10 and 35,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   77,326.50 : 115,976.10 = 35,196.72 : x
2. Step 2: Convert to fraction form
   77,326.50/115,976.10 = 35,196.72/x
3. Step 3: Cross multiply
   77,326.50x = 115,976.10 × 35,196.72
4. Step 4: Simplify right side
   77,326.50x = 4,081,978,318.39
5. Step 5: Solve for x
   x = 4,081,978,318.39/77,326.50
6. Step 6: Final answer
   x = 52,788.87