Finding the Fourth Proportional to 76,472.68, 105,529.36 and 42,483.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,472.68 : 105,529.36 = 42,483.30 : x
2. Step 2: Convert to fraction form
   76,472.68/105,529.36 = 42,483.30/x
3. Step 3: Cross multiply
   76,472.68x = 105,529.36 × 42,483.30
4. Step 4: Simplify right side
   76,472.68x = 4,483,235,459.69
5. Step 5: Solve for x
   x = 4,483,235,459.69/76,472.68
6. Step 6: Final answer
   x = 58,625.33