Finding the Fourth Proportional to 101,045.87, 139,443.23 and 58,028.18

Step by Step Solution

1. Step 1: Write the proportion equation
   101,045.87 : 139,443.23 = 58,028.18 : x
2. Step 2: Convert to fraction form
   101,045.87/139,443.23 = 58,028.18/x
3. Step 3: Cross multiply
   101,045.87x = 139,443.23 × 58,028.18
4. Step 4: Simplify right side
   101,045.87x = 8,091,635,862.86
5. Step 5: Solve for x
   x = 8,091,635,862.86/101,045.87
6. Step 6: Final answer
   x = 80,078.84