Finding the Fourth Proportional to 76,404.65, 105,437.49 and 42,413.41

Step by Step Solution

1. Step 1: Write the proportion equation
   76,404.65 : 105,437.49 = 42,413.41 : x
2. Step 2: Convert to fraction form
   76,404.65/105,437.49 = 42,413.41/x
3. Step 3: Cross multiply
   76,404.65x = 105,437.49 × 42,413.41
4. Step 4: Simplify right side
   76,404.65x = 4,471,963,492.74
5. Step 5: Solve for x
   x = 4,471,963,492.74/76,404.65
6. Step 6: Final answer
   x = 58,529.99