Finding the Fourth Proportional to 151,453.28, 209,004.54 and 83,470.32

Step by Step Solution

1. Step 1: Write the proportion equation
   151,453.28 : 209,004.54 = 83,470.32 : x
2. Step 2: Convert to fraction form
   151,453.28/209,004.54 = 83,470.32/x
3. Step 3: Cross multiply
   151,453.28x = 209,004.54 × 83,470.32
4. Step 4: Simplify right side
   151,453.28x = 17,445,675,835.25
5. Step 5: Solve for x
   x = 17,445,675,835.25/151,453.28
6. Step 6: Final answer
   x = 115,188.50