Finding the Fourth Proportional to 23,389,560.61, 34,913,026.62 and 20,628,429.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,389,560.61 : 34,913,026.62 = 20,628,429.37 : x
2. Step 2: Convert to fraction form
   23,389,560.61/34,913,026.62 = 20,628,429.37/x
3. Step 3: Cross multiply
   23,389,560.61x = 34,913,026.62 × 20,628,429.37
4. Step 4: Simplify right side
   23,389,560.61x = 720,200,903,636,317.25
5. Step 5: Solve for x
   x = 720,200,903,636,317.25/23,389,560.61
6. Step 6: Final answer
   x = 30,791,553.37