Finding the Fourth Proportional to 21,003,947.10, 31,493,479.05 and 10,926,251.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,003,947.10 : 31,493,479.05 = 10,926,251.10 : x
2. Step 2: Convert to fraction form
   21,003,947.10/31,493,479.05 = 10,926,251.10/x
3. Step 3: Cross multiply
   21,003,947.10x = 31,493,479.05 × 10,926,251.10
4. Step 4: Simplify right side
   21,003,947.10x = 344,105,660,112,889.44
5. Step 5: Solve for x
   x = 344,105,660,112,889.44/21,003,947.10
6. Step 6: Final answer
   x = 16,382,904.53