Finding the Fourth Proportional to 78,820.19, 108,771.86 and 50,525.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,820.19 : 108,771.86 = 50,525.88 : x
2. Step 2: Convert to fraction form
   78,820.19/108,771.86 = 50,525.88/x
3. Step 3: Cross multiply
   78,820.19x = 108,771.86 × 50,525.88
4. Step 4: Simplify right side
   78,820.19x = 5,495,793,664.16
5. Step 5: Solve for x
   x = 5,495,793,664.16/78,820.19
6. Step 6: Final answer
   x = 69,725.71