Finding the Fourth Proportional to 42,948.89, 64,429.41 and 16,656.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,948.89 : 64,429.41 = 16,656.29 : x
2. Step 2: Convert to fraction form
   42,948.89/64,429.41 = 16,656.29/x
3. Step 3: Cross multiply
   42,948.89x = 64,429.41 × 16,656.29
4. Step 4: Simplify right side
   42,948.89x = 1,073,154,615.34
5. Step 5: Solve for x
   x = 1,073,154,615.34/42,948.89
6. Step 6: Final answer
   x = 24,986.79