Finding the Fourth Proportional to 31,245,342.52, 43,109,245.56 and 20,214,624.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,245,342.52 : 43,109,245.56 = 20,214,624.82 : x
2. Step 2: Convert to fraction form
   31,245,342.52/43,109,245.56 = 20,214,624.82/x
3. Step 3: Cross multiply
   31,245,342.52x = 43,109,245.56 × 20,214,624.82
4. Step 4: Simplify right side
   31,245,342.52x = 871,437,225,268,650.88
5. Step 5: Solve for x
   x = 871,437,225,268,650.88/31,245,342.52
6. Step 6: Final answer
   x = 27,890,147.94