Finding the Fourth Proportional to 37,979.01, 52,411.20 and 21,212.01

Step by Step Solution

1. Step 1: Write the proportion equation
   37,979.01 : 52,411.20 = 21,212.01 : x
2. Step 2: Convert to fraction form
   37,979.01/52,411.20 = 21,212.01/x
3. Step 3: Cross multiply
   37,979.01x = 52,411.20 × 21,212.01
4. Step 4: Simplify right side
   37,979.01x = 1,111,746,898.51
5. Step 5: Solve for x
   x = 1,111,746,898.51/37,979.01
6. Step 6: Final answer
   x = 29,272.67