Finding the Fourth Proportional to 28,696.10, 43,048.59 and 14,648.51

Step by Step Solution

1. Step 1: Write the proportion equation
   28,696.10 : 43,048.59 = 14,648.51 : x
2. Step 2: Convert to fraction form
   28,696.10/43,048.59 = 14,648.51/x
3. Step 3: Cross multiply
   28,696.10x = 43,048.59 × 14,648.51
4. Step 4: Simplify right side
   28,696.10x = 630,597,485.86
5. Step 5: Solve for x
   x = 630,597,485.86/28,696.10
6. Step 6: Final answer
   x = 21,975.03