Finding the Fourth Proportional to 107,201.30, 160,809.69 and 28,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,201.30 : 160,809.69 = 28,314.50 : x
2. Step 2: Convert to fraction form
   107,201.30/160,809.69 = 28,314.50/x
3. Step 3: Cross multiply
   107,201.30x = 160,809.69 × 28,314.50
4. Step 4: Simplify right side
   107,201.30x = 4,553,245,967.51
5. Step 5: Solve for x
   x = 4,553,245,967.51/107,201.30
6. Step 6: Final answer
   x = 42,473.79