Finding the Fourth Proportional to 76,297, 105,289.86 and 42,763.24

Step by Step Solution

1. Step 1: Write the proportion equation
   76,297 : 105,289.86 = 42,763.24 : x
2. Step 2: Convert to fraction form
   76,297/105,289.86 = 42,763.24/x
3. Step 3: Cross multiply
   76,297x = 105,289.86 × 42,763.24
4. Step 4: Simplify right side
   76,297x = 4,502,535,552.75
5. Step 5: Solve for x
   x = 4,502,535,552.75/76,297
6. Step 6: Final answer
   x = 59,013.27