Finding the Fourth Proportional to 76,356, 105,371.34 and 42,822

Step by Step Solution

1. Step 1: Write the proportion equation
   76,356 : 105,371.34 = 42,822 : x
2. Step 2: Convert to fraction form
   76,356/105,371.34 = 42,822/x
3. Step 3: Cross multiply
   76,356x = 105,371.34 × 42,822
4. Step 4: Simplify right side
   76,356x = 4,512,211,521.48
5. Step 5: Solve for x
   x = 4,512,211,521.48/76,356
6. Step 6: Final answer
   x = 59,094.39