Finding the Fourth Proportional to 107,390.56, 160,362.56 and 87,708.16

Step by Step Solution

1. Step 1: Write the proportion equation
   107,390.56 : 160,362.56 = 87,708.16 : x
2. Step 2: Convert to fraction form
   107,390.56/160,362.56 = 87,708.16/x
3. Step 3: Cross multiply
   107,390.56x = 160,362.56 × 87,708.16
4. Step 4: Simplify right side
   107,390.56x = 14,065,105,070.49
5. Step 5: Solve for x
   x = 14,065,105,070.49/107,390.56
6. Step 6: Final answer
   x = 130,971.52