Finding the Fourth Proportional to 21,404,410.96, 32,106,678.72 and 9,105,205.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,404,410.96 : 32,106,678.72 = 9,105,205.48 : x
2. Step 2: Convert to fraction form
   21,404,410.96/32,106,678.72 = 9,105,205.48/x
3. Step 3: Cross multiply
   21,404,410.96x = 32,106,678.72 × 9,105,205.48
4. Step 4: Simplify right side
   21,404,410.96x = 292,337,907,025,943.38
5. Step 5: Solve for x
   x = 292,337,907,025,943.38/21,404,410.96
6. Step 6: Final answer
   x = 13,657,834.71