Finding the Fourth Proportional to 10,072,638.02, 13,900,196.76 and 5,488,959.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,072,638.02 : 13,900,196.76 = 5,488,959.80 : x
2. Step 2: Convert to fraction form
   10,072,638.02/13,900,196.76 = 5,488,959.80/x
3. Step 3: Cross multiply
   10,072,638.02x = 13,900,196.76 × 5,488,959.80
4. Step 4: Simplify right side
   10,072,638.02x = 76,297,621,227,730.25
5. Step 5: Solve for x
   x = 76,297,621,227,730.25/10,072,638.02
6. Step 6: Final answer
   x = 7,574,740.71