Finding the Fourth Proportional to 42,685.08, 64,035.15 and 14,598.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,685.08 : 64,035.15 = 14,598.54 : x
2. Step 2: Convert to fraction form
   42,685.08/64,035.15 = 14,598.54/x
3. Step 3: Cross multiply
   42,685.08x = 64,035.15 × 14,598.54
4. Step 4: Simplify right side
   42,685.08x = 934,819,698.68
5. Step 5: Solve for x
   x = 934,819,698.68/42,685.08
6. Step 6: Final answer
   x = 21,900.39