Finding the Fourth Proportional to 43,446,168.10, 65,178,000.15 and 12,740,688.10

Step by Step Solution

1. Step 1: Write the proportion equation
   43,446,168.10 : 65,178,000.15 = 12,740,688.10 : x
2. Step 2: Convert to fraction form
   43,446,168.10/65,178,000.15 = 12,740,688.10/x
3. Step 3: Cross multiply
   43,446,168.10x = 65,178,000.15 × 12,740,688.10
4. Step 4: Simplify right side
   43,446,168.10x = 830,412,570,892,903.12
5. Step 5: Solve for x
   x = 830,412,570,892,903.12/43,446,168.10
6. Step 6: Final answer
   x = 19,113,597.52