Finding the Fourth Proportional to 61,015.16, 91,513.34 and 16,645.52

Step by Step Solution

1. Step 1: Write the proportion equation
   61,015.16 : 91,513.34 = 16,645.52 : x
2. Step 2: Convert to fraction form
   61,015.16/91,513.34 = 16,645.52/x
3. Step 3: Cross multiply
   61,015.16x = 91,513.34 × 16,645.52
4. Step 4: Simplify right side
   61,015.16x = 1,523,287,131.24
5. Step 5: Solve for x
   x = 1,523,287,131.24/61,015.16
6. Step 6: Final answer
   x = 24,965.72