Finding the Fourth Proportional to 115,561.68, 159,482.52 and 64,574.56

Step by Step Solution

1. Step 1: Write the proportion equation
   115,561.68 : 159,482.52 = 64,574.56 : x
2. Step 2: Convert to fraction form
   115,561.68/159,482.52 = 64,574.56/x
3. Step 3: Cross multiply
   115,561.68x = 159,482.52 × 64,574.56
4. Step 4: Simplify right side
   115,561.68x = 10,298,513,556.69
5. Step 5: Solve for x
   x = 10,298,513,556.69/115,561.68
6. Step 6: Final answer
   x = 89,117.03