Finding the Fourth Proportional to 105,159.57, 157,608.13 and 52,584.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105,159.57 : 157,608.13 = 52,584.09 : x
2. Step 2: Convert to fraction form
   105,159.57/157,608.13 = 52,584.09/x
3. Step 3: Cross multiply
   105,159.57x = 157,608.13 × 52,584.09
4. Step 4: Simplify right side
   105,159.57x = 8,287,680,092.65
5. Step 5: Solve for x
   x = 8,287,680,092.65/105,159.57
6. Step 6: Final answer
   x = 78,810.52