Finding the Fourth Proportional to 100,670.74, 150,870.76 and 50,786.69

Step by Step Solution

1. Step 1: Write the proportion equation
   100,670.74 : 150,870.76 = 50,786.69 : x
2. Step 2: Convert to fraction form
   100,670.74/150,870.76 = 50,786.69/x
3. Step 3: Cross multiply
   100,670.74x = 150,870.76 × 50,786.69
4. Step 4: Simplify right side
   100,670.74x = 7,662,225,636.86
5. Step 5: Solve for x
   x = 7,662,225,636.86/100,670.74
6. Step 6: Final answer
   x = 76,111.75