Finding the Fourth Proportional to 12,156,696.10, 18,235,044.15 and 10,980,964.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156,696.10 : 18,235,044.15 = 10,980,964.90 : x
2. Step 2: Convert to fraction form
   12,156,696.10/18,235,044.15 = 10,980,964.90/x
3. Step 3: Cross multiply
   12,156,696.10x = 18,235,044.15 × 10,980,964.90
4. Step 4: Simplify right side
   12,156,696.10x = 200,238,379,761,100.31
5. Step 5: Solve for x
   x = 200,238,379,761,100.31/12,156,696.10
6. Step 6: Final answer
   x = 16,471,447.35