Finding the Fourth Proportional to 21,141,242.37, 29,177,334.72 and 11,851,321.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,141,242.37 : 29,177,334.72 = 11,851,321.53 : x
2. Step 2: Convert to fraction form
   21,141,242.37/29,177,334.72 = 11,851,321.53/x
3. Step 3: Cross multiply
   21,141,242.37x = 29,177,334.72 × 11,851,321.53
4. Step 4: Simplify right side
   21,141,242.37x = 345,789,975,155,152.50
5. Step 5: Solve for x
   x = 345,789,975,155,152.50/21,141,242.37
6. Step 6: Final answer
   x = 16,356,180.45