Finding the Fourth Proportional to 12,302,052.10, 18,453,078.15 and 5,478,612.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,302,052.10 : 18,453,078.15 = 5,478,612.10 : x
2. Step 2: Convert to fraction form
   12,302,052.10/18,453,078.15 = 5,478,612.10/x
3. Step 3: Cross multiply
   12,302,052.10x = 18,453,078.15 × 5,478,612.10
4. Step 4: Simplify right side
   12,302,052.10x = 101,097,257,234,835.59
5. Step 5: Solve for x
   x = 101,097,257,234,835.59/12,302,052.10
6. Step 6: Final answer
   x = 8,217,918.15