Finding the Fourth Proportional to 37,976.01, 52,407.05 and 21,209.01

Step by Step Solution

1. Step 1: Write the proportion equation
   37,976.01 : 52,407.05 = 21,209.01 : x
2. Step 2: Convert to fraction form
   37,976.01/52,407.05 = 21,209.01/x
3. Step 3: Cross multiply
   37,976.01x = 52,407.05 × 21,209.01
4. Step 4: Simplify right side
   37,976.01x = 1,111,501,541.48
5. Step 5: Solve for x
   x = 1,111,501,541.48/37,976.01
6. Step 6: Final answer
   x = 29,268.52