Finding the Fourth Proportional to 20,342,093.58, 28,079,455.41 and 13,468,789.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,342,093.58 : 28,079,455.41 = 13,468,789.98 : x
2. Step 2: Convert to fraction form
   20,342,093.58/28,079,455.41 = 13,468,789.98/x
3. Step 3: Cross multiply
   20,342,093.58x = 28,079,455.41 × 13,468,789.98
4. Step 4: Simplify right side
   20,342,093.58x = 378,196,287,670,064.81
5. Step 5: Solve for x
   x = 378,196,287,670,064.81/20,342,093.58
6. Step 6: Final answer
   x = 18,591,807.48