Finding the Fourth Proportional to 72,925.04, 109,339.56 and 28,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,925.04 : 109,339.56 = 28,556.72 : x
2. Step 2: Convert to fraction form
   72,925.04/109,339.56 = 28,556.72/x
3. Step 3: Cross multiply
   72,925.04x = 109,339.56 × 28,556.72
4. Step 4: Simplify right side
   72,925.04x = 3,122,379,199.84
5. Step 5: Solve for x
   x = 3,122,379,199.84/72,925.04
6. Step 6: Final answer
   x = 42,816.28