Finding the Fourth Proportional to 42,390.25, 63,596.72 and 14,688.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,390.25 : 63,596.72 = 14,688.25 : x
2. Step 2: Convert to fraction form
   42,390.25/63,596.72 = 14,688.25/x
3. Step 3: Cross multiply
   42,390.25x = 63,596.72 × 14,688.25
4. Step 4: Simplify right side
   42,390.25x = 934,124,522.54
5. Step 5: Solve for x
   x = 934,124,522.54/42,390.25
6. Step 6: Final answer
   x = 22,036.31