Finding the Fourth Proportional to 37,768.10, 56,627.49 and 21,129.98

Step by Step Solution

1. Step 1: Write the proportion equation
   37,768.10 : 56,627.49 = 21,129.98 : x
2. Step 2: Convert to fraction form
   37,768.10/56,627.49 = 21,129.98/x
3. Step 3: Cross multiply
   37,768.10x = 56,627.49 × 21,129.98
4. Step 4: Simplify right side
   37,768.10x = 1,196,537,731.15
5. Step 5: Solve for x
   x = 1,196,537,731.15/37,768.10
6. Step 6: Final answer
   x = 31,681.17