Finding the Fourth Proportional to 76,453.31, 105,509.10 and 42,461.96

Step by Step Solution

1. Step 1: Write the proportion equation
   76,453.31 : 105,509.10 = 42,461.96 : x
2. Step 2: Convert to fraction form
   76,453.31/105,509.10 = 42,461.96/x
3. Step 3: Cross multiply
   76,453.31x = 105,509.10 × 42,461.96
4. Step 4: Simplify right side
   76,453.31x = 4,480,123,183.84
5. Step 5: Solve for x
   x = 4,480,123,183.84/76,453.31
6. Step 6: Final answer
   x = 58,599.47