Finding the Fourth Proportional to 4,672,279.10, 7,007,106.45 and 1,478,384.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,672,279.10 : 7,007,106.45 = 1,478,384.30 : x
2. Step 2: Convert to fraction form
   4,672,279.10/7,007,106.45 = 1,478,384.30/x
3. Step 3: Cross multiply
   4,672,279.10x = 7,007,106.45 × 1,478,384.30
4. Step 4: Simplify right side
   4,672,279.10x = 10,359,196,164,108.74
5. Step 5: Solve for x
   x = 10,359,196,164,108.74/4,672,279.10
6. Step 6: Final answer
   x = 2,217,161.25