Finding the Fourth Proportional to 76,776.66, 115,174.71 and 30,023.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,776.66 : 115,174.71 = 30,023.46 : x
2. Step 2: Convert to fraction form
   76,776.66/115,174.71 = 30,023.46/x
3. Step 3: Cross multiply
   76,776.66x = 115,174.71 × 30,023.46
4. Step 4: Simplify right side
   76,776.66x = 3,457,943,298.70
5. Step 5: Solve for x
   x = 3,457,943,298.70/76,776.66
6. Step 6: Final answer
   x = 45,038.99