Finding the Fourth Proportional to 78,214.82, 108,025.55 and 53,020.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,214.82 : 108,025.55 = 53,020.58 : x
2. Step 2: Convert to fraction form
   78,214.82/108,025.55 = 53,020.58/x
3. Step 3: Cross multiply
   78,214.82x = 108,025.55 × 53,020.58
4. Step 4: Simplify right side
   78,214.82x = 5,727,577,050.72
5. Step 5: Solve for x
   x = 5,727,577,050.72/78,214.82
6. Step 6: Final answer
   x = 73,228.80