Finding the Fourth Proportional to 39,066,513.71, 53,912,778.80 and 21,426,118.56

Step by Step Solution

1. Step 1: Write the proportion equation
   39,066,513.71 : 53,912,778.80 = 21,426,118.56 : x
2. Step 2: Convert to fraction form
   39,066,513.71/53,912,778.80 = 21,426,118.56/x
3. Step 3: Cross multiply
   39,066,513.71x = 53,912,778.80 × 21,426,118.56
4. Step 4: Simplify right side
   39,066,513.71x = 1,155,141,590,360,724
5. Step 5: Solve for x
   x = 1,155,141,590,360,724/39,066,513.71
6. Step 6: Final answer
   x = 29,568,586.52