Finding the Fourth Proportional to 106,185, 146,538.75 and 60,871.57

Step by Step Solution

1. Step 1: Write the proportion equation
   106,185 : 146,538.75 = 60,871.57 : x
2. Step 2: Convert to fraction form
   106,185/146,538.75 = 60,871.57/x
3. Step 3: Cross multiply
   106,185x = 146,538.75 × 60,871.57
4. Step 4: Simplify right side
   106,185x = 8,920,043,778.34
5. Step 5: Solve for x
   x = 8,920,043,778.34/106,185
6. Step 6: Final answer
   x = 84,004.74