Finding the Fourth Proportional to 151,518.90, 209,097.56 and 83,538.56

Step by Step Solution

1. Step 1: Write the proportion equation
   151,518.90 : 209,097.56 = 83,538.56 : x
2. Step 2: Convert to fraction form
   151,518.90/209,097.56 = 83,538.56/x
3. Step 3: Cross multiply
   151,518.90x = 209,097.56 × 83,538.56
4. Step 4: Simplify right side
   151,518.90x = 17,467,709,061.91
5. Step 5: Solve for x
   x = 17,467,709,061.91/151,518.90
6. Step 6: Final answer
   x = 115,284.03