Finding the Fourth Proportional to 42,379.28, 63,543.53 and 14,298.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,379.28 : 63,543.53 = 14,298.71 : x
2. Step 2: Convert to fraction form
   42,379.28/63,543.53 = 14,298.71/x
3. Step 3: Cross multiply
   42,379.28x = 63,543.53 × 14,298.71
4. Step 4: Simplify right side
   42,379.28x = 908,590,225.88
5. Step 5: Solve for x
   x = 908,590,225.88/42,379.28
6. Step 6: Final answer
   x = 21,439.49