Finding the Fourth Proportional to 80,945.37, 121,406.21 and 58,562.79

Step by Step Solution

1. Step 1: Write the proportion equation
   80,945.37 : 121,406.21 = 58,562.79 : x
2. Step 2: Convert to fraction form
   80,945.37/121,406.21 = 58,562.79/x
3. Step 3: Cross multiply
   80,945.37x = 121,406.21 × 58,562.79
4. Step 4: Simplify right side
   80,945.37x = 7,109,886,088.11
5. Step 5: Solve for x
   x = 7,109,886,088.11/80,945.37
6. Step 6: Final answer
   x = 87,835.61