Finding the Fourth Proportional to 76,480.59, 105,541.74 and 42,488.94

Step by Step Solution

1. Step 1: Write the proportion equation
   76,480.59 : 105,541.74 = 42,488.94 : x
2. Step 2: Convert to fraction form
   76,480.59/105,541.74 = 42,488.94/x
3. Step 3: Cross multiply
   76,480.59x = 105,541.74 × 42,488.94
4. Step 4: Simplify right side
   76,480.59x = 4,484,356,658.36
5. Step 5: Solve for x
   x = 4,484,356,658.36/76,480.59
6. Step 6: Final answer
   x = 58,633.92