Finding the Fourth Proportional to 28,362.30, 42,569.72 and 14,332.18

Step by Step Solution

1. Step 1: Write the proportion equation
   28,362.30 : 42,569.72 = 14,332.18 : x
2. Step 2: Convert to fraction form
   28,362.30/42,569.72 = 14,332.18/x
3. Step 3: Cross multiply
   28,362.30x = 42,569.72 × 14,332.18
4. Step 4: Simplify right side
   28,362.30x = 610,116,889.59
5. Step 5: Solve for x
   x = 610,116,889.59/28,362.30
6. Step 6: Final answer
   x = 21,511.54