Finding the Fourth Proportional to 101,164.64, 139,579.25 and 58,141.89

Step by Step Solution

1. Step 1: Write the proportion equation
   101,164.64 : 139,579.25 = 58,141.89 : x
2. Step 2: Convert to fraction form
   101,164.64/139,579.25 = 58,141.89/x
3. Step 3: Cross multiply
   101,164.64x = 139,579.25 × 58,141.89
4. Step 4: Simplify right side
   101,164.64x = 8,115,401,109.07
5. Step 5: Solve for x
   x = 8,115,401,109.07/101,164.64
6. Step 6: Final answer
   x = 80,219.74