Finding the Fourth Proportional to 66,171,624.10, 99,257,436.15 and 20,113,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   66,171,624.10 : 99,257,436.15 = 20,113,404.10 : x
2. Step 2: Convert to fraction form
   66,171,624.10/99,257,436.15 = 20,113,404.10/x
3. Step 3: Cross multiply
   66,171,624.10x = 99,257,436.15 × 20,113,404.10
4. Step 4: Simplify right side
   66,171,624.10x = 1,996,404,923,214,898.50
5. Step 5: Solve for x
   x = 1,996,404,923,214,898.50/66,171,624.10
6. Step 6: Final answer
   x = 30,170,106.15