Finding the Fourth Proportional to 101,185.42, 139,645.80 and 58,741.42

Step by Step Solution

1. Step 1: Write the proportion equation
   101,185.42 : 139,645.80 = 58,741.42 : x
2. Step 2: Convert to fraction form
   101,185.42/139,645.80 = 58,741.42/x
3. Step 3: Cross multiply
   101,185.42x = 139,645.80 × 58,741.42
4. Step 4: Simplify right side
   101,185.42x = 8,202,992,589.04
5. Step 5: Solve for x
   x = 8,202,992,589.04/101,185.42
6. Step 6: Final answer
   x = 81,068.92