Finding the Fourth Proportional to 151,563.56, 209,152.90 and 83,583.40

Step by Step Solution

1. Step 1: Write the proportion equation
   151,563.56 : 209,152.90 = 83,583.40 : x
2. Step 2: Convert to fraction form
   151,563.56/209,152.90 = 83,583.40/x
3. Step 3: Cross multiply
   151,563.56x = 209,152.90 × 83,583.40
4. Step 4: Simplify right side
   151,563.56x = 17,481,710,501.86
5. Step 5: Solve for x
   x = 17,481,710,501.86/151,563.56
6. Step 6: Final answer
   x = 115,342.44