Finding the Fourth Proportional to 151,501.86, 209,072.21 and 83,518.29

Step by Step Solution

1. Step 1: Write the proportion equation
   151,501.86 : 209,072.21 = 83,518.29 : x
2. Step 2: Convert to fraction form
   151,501.86/209,072.21 = 83,518.29/x
3. Step 3: Cross multiply
   151,501.86x = 209,072.21 × 83,518.29
4. Step 4: Simplify right side
   151,501.86x = 17,461,353,048.13
5. Step 5: Solve for x
   x = 17,461,353,048.13/151,501.86
6. Step 6: Final answer
   x = 115,255.04