Finding the Fourth Proportional to 39,066,514.71, 53,912,780.18 and 21,426,119.56

Step by Step Solution

1. Step 1: Write the proportion equation
   39,066,514.71 : 53,912,780.18 = 21,426,119.56 : x
2. Step 2: Convert to fraction form
   39,066,514.71/53,912,780.18 = 21,426,119.56/x
3. Step 3: Cross multiply
   39,066,514.71x = 53,912,780.18 × 21,426,119.56
4. Step 4: Simplify right side
   39,066,514.71x = 1,155,141,673,948,678.25
5. Step 5: Solve for x
   x = 1,155,141,673,948,678.25/39,066,514.71
6. Step 6: Final answer
   x = 29,568,587.89