Finding the Fourth Proportional to 105,482.66, 158,154.73 and 42,256.49

Step by Step Solution

1. Step 1: Write the proportion equation
   105,482.66 : 158,154.73 = 42,256.49 : x
2. Step 2: Convert to fraction form
   105,482.66/158,154.73 = 42,256.49/x
3. Step 3: Cross multiply
   105,482.66x = 158,154.73 × 42,256.49
4. Step 4: Simplify right side
   105,482.66x = 6,683,062,870.28
5. Step 5: Solve for x
   x = 6,683,062,870.28/105,482.66
6. Step 6: Final answer
   x = 63,356.98