Finding the Fourth Proportional to 37,977.82, 52,409.40 and 21,210.82

Step by Step Solution

1. Step 1: Write the proportion equation
   37,977.82 : 52,409.40 = 21,210.82 : x
2. Step 2: Convert to fraction form
   37,977.82/52,409.40 = 21,210.82/x
3. Step 3: Cross multiply
   37,977.82x = 52,409.40 × 21,210.82
4. Step 4: Simplify right side
   37,977.82x = 1,111,646,286.55
5. Step 5: Solve for x
   x = 1,111,646,286.55/37,977.82
6. Step 6: Final answer
   x = 29,270.93