Finding the Fourth Proportional to 72,425.10, 108,656.55 and 28,053.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,425.10 : 108,656.55 = 28,053.30 : x
2. Step 2: Convert to fraction form
   72,425.10/108,656.55 = 28,053.30/x
3. Step 3: Cross multiply
   72,425.10x = 108,656.55 × 28,053.30
4. Step 4: Simplify right side
   72,425.10x = 3,048,174,794.12
5. Step 5: Solve for x
   x = 3,048,174,794.12/72,425.10
6. Step 6: Final answer
   x = 42,087.27