Finding the Fourth Proportional to 53,146,099.05, 79,719,149.61 and 12,756,583.05

Step by Step Solution

1. Step 1: Write the proportion equation
   53,146,099.05 : 79,719,149.61 = 12,756,583.05 : x
2. Step 2: Convert to fraction form
   53,146,099.05/79,719,149.61 = 12,756,583.05/x
3. Step 3: Cross multiply
   53,146,099.05x = 79,719,149.61 × 12,756,583.05
4. Step 4: Simplify right side
   53,146,099.05x = 1,016,943,953,013,166.50
5. Step 5: Solve for x
   x = 1,016,943,953,013,166.50/53,146,099.05
6. Step 6: Final answer
   x = 19,134,874.83