Finding the Fourth Proportional to 76,488.24, 105,555.04 and 42,499.76

Step by Step Solution

1. Step 1: Write the proportion equation
   76,488.24 : 105,555.04 = 42,499.76 : x
2. Step 2: Convert to fraction form
   76,488.24/105,555.04 = 42,499.76/x
3. Step 3: Cross multiply
   76,488.24x = 105,555.04 × 42,499.76
4. Step 4: Simplify right side
   76,488.24x = 4,486,063,866.79
5. Step 5: Solve for x
   x = 4,486,063,866.79/76,488.24
6. Step 6: Final answer
   x = 58,650.37