Finding the Fourth Proportional to 76,488.27, 105,552.50 and 42,497.07

Step by Step Solution

1. Step 1: Write the proportion equation
   76,488.27 : 105,552.50 = 42,497.07 : x
2. Step 2: Convert to fraction form
   76,488.27/105,552.50 = 42,497.07/x
3. Step 3: Cross multiply
   76,488.27x = 105,552.50 × 42,497.07
4. Step 4: Simplify right side
   76,488.27x = 4,485,671,768.69
5. Step 5: Solve for x
   x = 4,485,671,768.69/76,488.27
6. Step 6: Final answer
   x = 58,645.22