Finding the Fourth Proportional to 76,185.36, 105,123.30 and 47,871

Step by Step Solution

1. Step 1: Write the proportion equation
   76,185.36 : 105,123.30 = 47,871 : x
2. Step 2: Convert to fraction form
   76,185.36/105,123.30 = 47,871/x
3. Step 3: Cross multiply
   76,185.36x = 105,123.30 × 47,871
4. Step 4: Simplify right side
   76,185.36x = 5,032,357,494.30
5. Step 5: Solve for x
   x = 5,032,357,494.30/76,185.36
6. Step 6: Final answer
   x = 66,054.13