Finding the Fourth Proportional to 76,816.69, 115,224.90 and 30,036.76

Step by Step Solution

1. Step 1: Write the proportion equation
   76,816.69 : 115,224.90 = 30,036.76 : x
2. Step 2: Convert to fraction form
   76,816.69/115,224.90 = 30,036.76/x
3. Step 3: Cross multiply
   76,816.69x = 115,224.90 × 30,036.76
4. Step 4: Simplify right side
   76,816.69x = 3,460,982,667.32
5. Step 5: Solve for x
   x = 3,460,982,667.32/76,816.69
6. Step 6: Final answer
   x = 45,055.09