Finding the Fourth Proportional to 312,723.30, 469,085.34 and 76,064.34

Step by Step Solution

1. Step 1: Write the proportion equation
   312,723.30 : 469,085.34 = 76,064.34 : x
2. Step 2: Convert to fraction form
   312,723.30/469,085.34 = 76,064.34/x
3. Step 3: Cross multiply
   312,723.30x = 469,085.34 × 76,064.34
4. Step 4: Simplify right side
   312,723.30x = 35,680,666,790.78
5. Step 5: Solve for x
   x = 35,680,666,790.78/312,723.30
6. Step 6: Final answer
   x = 114,096.60