Finding the Fourth Proportional to 21,400,943.88, 32,094,672.42 and 7,020,660.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,400,943.88 : 32,094,672.42 = 7,020,660.72 : x
2. Step 2: Convert to fraction form
   21,400,943.88/32,094,672.42 = 7,020,660.72/x
3. Step 3: Cross multiply
   21,400,943.88x = 32,094,672.42 × 7,020,660.72
4. Step 4: Simplify right side
   21,400,943.88x = 225,325,805,980,361.34
5. Step 5: Solve for x
   x = 225,325,805,980,361.34/21,400,943.88
6. Step 6: Final answer
   x = 10,528,778.88