Finding the Fourth Proportional to 76,384.75, 105,411.68 and 42,851.47

Step by Step Solution

1. Step 1: Write the proportion equation
   76,384.75 : 105,411.68 = 42,851.47 : x
2. Step 2: Convert to fraction form
   76,384.75/105,411.68 = 42,851.47/x
3. Step 3: Cross multiply
   76,384.75x = 105,411.68 × 42,851.47
4. Step 4: Simplify right side
   76,384.75x = 4,517,045,443.17
5. Step 5: Solve for x
   x = 4,517,045,443.17/76,384.75
6. Step 6: Final answer
   x = 59,135.44