Finding the Fourth Proportional to 56,982.20, 78,590.60 and 53,162.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,982.20 : 78,590.60 = 53,162.52 : x
2. Step 2: Convert to fraction form
   56,982.20/78,590.60 = 53,162.52/x
3. Step 3: Cross multiply
   56,982.20x = 78,590.60 × 53,162.52
4. Step 4: Simplify right side
   56,982.20x = 4,178,074,344.31
5. Step 5: Solve for x
   x = 4,178,074,344.31/56,982.20
6. Step 6: Final answer
   x = 73,322.45