Finding the Fourth Proportional to 42,698.85, 64,051.35 and 16,403.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,698.85 : 64,051.35 = 16,403.59 : x
2. Step 2: Convert to fraction form
   42,698.85/64,051.35 = 16,403.59/x
3. Step 3: Cross multiply
   42,698.85x = 64,051.35 × 16,403.59
4. Step 4: Simplify right side
   42,698.85x = 1,050,672,084.35
5. Step 5: Solve for x
   x = 1,050,672,084.35/42,698.85
6. Step 6: Final answer
   x = 24,606.57