Finding the Fourth Proportional to 21,347,173.31, 29,456,838.70 and 12,054,180.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,347,173.31 : 29,456,838.70 = 12,054,180.09 : x
2. Step 2: Convert to fraction form
   21,347,173.31/29,456,838.70 = 12,054,180.09/x
3. Step 3: Cross multiply
   21,347,173.31x = 29,456,838.70 × 12,054,180.09
4. Step 4: Simplify right side
   21,347,173.31x = 355,078,038,571,881.50
5. Step 5: Solve for x
   x = 355,078,038,571,881.50/21,347,173.31
6. Step 6: Final answer
   x = 16,633,492.10