Finding the Fourth Proportional to 21,586,382.48, 32,370,356.56 and 12,494,755.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,586,382.48 : 32,370,356.56 = 12,494,755.60 : x
2. Step 2: Convert to fraction form
   21,586,382.48/32,370,356.56 = 12,494,755.60/x
3. Step 3: Cross multiply
   21,586,382.48x = 32,370,356.56 × 12,494,755.60
4. Step 4: Simplify right side
   21,586,382.48x = 404,459,693,902,056.69
5. Step 5: Solve for x
   x = 404,459,693,902,056.69/21,586,382.48
6. Step 6: Final answer
   x = 18,736,798.27