Finding the Fourth Proportional to 28,237,288.79, 42,373,850.87 and 12,063,361.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,237,288.79 : 42,373,850.87 = 12,063,361.72 : x
2. Step 2: Convert to fraction form
   28,237,288.79/42,373,850.87 = 12,063,361.72/x
3. Step 3: Cross multiply
   28,237,288.79x = 42,373,850.87 × 12,063,361.72
4. Step 4: Simplify right side
   28,237,288.79x = 511,171,090,514,146.69
5. Step 5: Solve for x
   x = 511,171,090,514,146.69/28,237,288.79
6. Step 6: Final answer
   x = 18,102,697.26