Finding the Fourth Proportional to 77,080.82, 115,664.96 and 30,366.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,080.82 : 115,664.96 = 30,366.50 : x
2. Step 2: Convert to fraction form
   77,080.82/115,664.96 = 30,366.50/x
3. Step 3: Cross multiply
   77,080.82x = 115,664.96 × 30,366.50
4. Step 4: Simplify right side
   77,080.82x = 3,512,339,505.43
5. Step 5: Solve for x
   x = 3,512,339,505.43/77,080.82
6. Step 6: Final answer
   x = 45,566.97