Finding the Fourth Proportional to 21,854,510.10, 30,641,103.90 and 21,854,510.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,854,510.10 : 30,641,103.90 = 21,854,510.10 : x
2. Step 2: Convert to fraction form
   21,854,510.10/30,641,103.90 = 21,854,510.10/x
3. Step 3: Cross multiply
   21,854,510.10x = 30,641,103.90 × 21,854,510.10
4. Step 4: Simplify right side
   21,854,510.10x = 669,646,314,657,699.38
5. Step 5: Solve for x
   x = 669,646,314,657,699.38/21,854,510.10
6. Step 6: Final answer
   x = 30,641,103.90