Finding the Fourth Proportional to 78,292.04, 117,360.72 and 50,131.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,292.04 : 117,360.72 = 50,131.88 : x
2. Step 2: Convert to fraction form
   78,292.04/117,360.72 = 50,131.88/x
3. Step 3: Cross multiply
   78,292.04x = 117,360.72 × 50,131.88
4. Step 4: Simplify right side
   78,292.04x = 5,883,513,531.75
5. Step 5: Solve for x
   x = 5,883,513,531.75/78,292.04
6. Step 6: Final answer
   x = 75,148.30