Finding the Fourth Proportional to 58,119.72, 87,234.15 and 28,558.77

Step by Step Solution

1. Step 1: Write the proportion equation
   58,119.72 : 87,234.15 = 28,558.77 : x
2. Step 2: Convert to fraction form
   58,119.72/87,234.15 = 28,558.77/x
3. Step 3: Cross multiply
   58,119.72x = 87,234.15 × 28,558.77
4. Step 4: Simplify right side
   58,119.72x = 2,491,300,026.00
5. Step 5: Solve for x
   x = 2,491,300,026.00/58,119.72
6. Step 6: Final answer
   x = 42,864.97