Finding the Fourth Proportional to 121,109.48, 181,401.66 and 58,649

Step by Step Solution

1. Step 1: Write the proportion equation
   121,109.48 : 181,401.66 = 58,649 : x
2. Step 2: Convert to fraction form
   121,109.48/181,401.66 = 58,649/x
3. Step 3: Cross multiply
   121,109.48x = 181,401.66 × 58,649
4. Step 4: Simplify right side
   121,109.48x = 10,639,025,957.34
5. Step 5: Solve for x
   x = 10,639,025,957.34/121,109.48
6. Step 6: Final answer
   x = 87,846.35