Finding the Fourth Proportional to 37,746.72, 52,090.56 and 20,980.80

Step by Step Solution

1. Step 1: Write the proportion equation
   37,746.72 : 52,090.56 = 20,980.80 : x
2. Step 2: Convert to fraction form
   37,746.72/52,090.56 = 20,980.80/x
3. Step 3: Cross multiply
   37,746.72x = 52,090.56 × 20,980.80
4. Step 4: Simplify right side
   37,746.72x = 1,092,901,621.25
5. Step 5: Solve for x
   x = 1,092,901,621.25/37,746.72
6. Step 6: Final answer
   x = 28,953.55