Finding the Fourth Proportional to 13,145,648.10, 19,718,472.15 and 9,957,002.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,145,648.10 : 19,718,472.15 = 9,957,002.10 : x
2. Step 2: Convert to fraction form
   13,145,648.10/19,718,472.15 = 9,957,002.10/x
3. Step 3: Cross multiply
   13,145,648.10x = 19,718,472.15 × 9,957,002.10
4. Step 4: Simplify right side
   13,145,648.10x = 196,336,868,606,341.50
5. Step 5: Solve for x
   x = 196,336,868,606,341.50/13,145,648.10
6. Step 6: Final answer
   x = 14,935,503.15