Finding the Fourth Proportional to 61,321.66, 91,993.89 and 21,338.98

Step by Step Solution

1. Step 1: Write the proportion equation
   61,321.66 : 91,993.89 = 21,338.98 : x
2. Step 2: Convert to fraction form
   61,321.66/91,993.89 = 21,338.98/x
3. Step 3: Cross multiply
   61,321.66x = 91,993.89 × 21,338.98
4. Step 4: Simplify right side
   61,321.66x = 1,963,055,778.83
5. Step 5: Solve for x
   x = 1,963,055,778.83/61,321.66
6. Step 6: Final answer
   x = 32,012.44