Finding the Fourth Proportional to 151,648.72, 209,275.94 and 83,666.52

Step by Step Solution

1. Step 1: Write the proportion equation
   151,648.72 : 209,275.94 = 83,666.52 : x
2. Step 2: Convert to fraction form
   151,648.72/209,275.94 = 83,666.52/x
3. Step 3: Cross multiply
   151,648.72x = 209,275.94 × 83,666.52
4. Step 4: Simplify right side
   151,648.72x = 17,509,389,619.53
5. Step 5: Solve for x
   x = 17,509,389,619.53/151,648.72
6. Step 6: Final answer
   x = 115,460.19