Finding the Fourth Proportional to 42,620.72, 63,899.57 and 14,533.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,620.72 : 63,899.57 = 14,533.34 : x
2. Step 2: Convert to fraction form
   42,620.72/63,899.57 = 14,533.34/x
3. Step 3: Cross multiply
   42,620.72x = 63,899.57 × 14,533.34
4. Step 4: Simplify right side
   42,620.72x = 928,674,176.66
5. Step 5: Solve for x
   x = 928,674,176.66/42,620.72
6. Step 6: Final answer
   x = 21,789.27