Finding the Fourth Proportional to 78,870.26, 108,853.46 and 50,159.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,870.26 : 108,853.46 = 50,159.99 : x
2. Step 2: Convert to fraction form
   78,870.26/108,853.46 = 50,159.99/x
3. Step 3: Cross multiply
   78,870.26x = 108,853.46 × 50,159.99
4. Step 4: Simplify right side
   78,870.26x = 5,460,087,670.00
5. Step 5: Solve for x
   x = 5,460,087,670.00/78,870.26
6. Step 6: Final answer
   x = 69,228.73