Finding the Fourth Proportional to 106,058.43, 146,185.16 and 72,051.39

Step by Step Solution

1. Step 1: Write the proportion equation
   106,058.43 : 146,185.16 = 72,051.39 : x
2. Step 2: Convert to fraction form
   106,058.43/146,185.16 = 72,051.39/x
3. Step 3: Cross multiply
   106,058.43x = 146,185.16 × 72,051.39
4. Step 4: Simplify right side
   106,058.43x = 10,532,843,615.12
5. Step 5: Solve for x
   x = 10,532,843,615.12/106,058.43
6. Step 6: Final answer
   x = 99,311.71