Finding the Fourth Proportional to 10,215,198.78, 14,097,082.95 and 5,631,684.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,215,198.78 : 14,097,082.95 = 5,631,684.18 : x
2. Step 2: Convert to fraction form
   10,215,198.78/14,097,082.95 = 5,631,684.18/x
3. Step 3: Cross multiply
   10,215,198.78x = 14,097,082.95 × 5,631,684.18
4. Step 4: Simplify right side
   10,215,198.78x = 79,390,319,033,662.72
5. Step 5: Solve for x
   x = 79,390,319,033,662.72/10,215,198.78
6. Step 6: Final answer
   x = 7,771,784.06