Finding the Fourth Proportional to 13,553,711.32, 18,704,121.72 and 7,442,139.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,553,711.32 : 18,704,121.72 = 7,442,139.82 : x
2. Step 2: Convert to fraction form
   13,553,711.32/18,704,121.72 = 7,442,139.82/x
3. Step 3: Cross multiply
   13,553,711.32x = 18,704,121.72 × 7,442,139.82
4. Step 4: Simplify right side
   13,553,711.32x = 139,198,689,050,538.89
5. Step 5: Solve for x
   x = 139,198,689,050,538.89/13,553,711.32
6. Step 6: Final answer
   x = 10,270,153.01