Finding the Fourth Proportional to 115,975.58, 160,059.58 and 65,002.08

Step by Step Solution

1. Step 1: Write the proportion equation
   115,975.58 : 160,059.58 = 65,002.08 : x
2. Step 2: Convert to fraction form
   115,975.58/160,059.58 = 65,002.08/x
3. Step 3: Cross multiply
   115,975.58x = 160,059.58 × 65,002.08
4. Step 4: Simplify right side
   115,975.58x = 10,404,205,623.93
5. Step 5: Solve for x
   x = 10,404,205,623.93/115,975.58
6. Step 6: Final answer
   x = 89,710.31