Finding the Fourth Proportional to 42,993.16, 64,459.50 and 16,675.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993.16 : 64,459.50 = 16,675.72 : x
2. Step 2: Convert to fraction form
   42,993.16/64,459.50 = 16,675.72/x
3. Step 3: Cross multiply
   42,993.16x = 64,459.50 × 16,675.72
4. Step 4: Simplify right side
   42,993.16x = 1,074,908,573.34
5. Step 5: Solve for x
   x = 1,074,908,573.34/42,993.16
6. Step 6: Final answer
   x = 25,001.85