Finding the Fourth Proportional to 151,648.47, 209,275.60 and 83,666.27

Step by Step Solution

1. Step 1: Write the proportion equation
   151,648.47 : 209,275.60 = 83,666.27 : x
2. Step 2: Convert to fraction form
   151,648.47/209,275.60 = 83,666.27/x
3. Step 3: Cross multiply
   151,648.47x = 209,275.60 × 83,666.27
4. Step 4: Simplify right side
   151,648.47x = 17,509,308,435.68
5. Step 5: Solve for x
   x = 17,509,308,435.68/151,648.47
6. Step 6: Final answer
   x = 115,459.84