Finding the Fourth Proportional to 12,672,564.38, 17,488,482.71 and 7,166,762.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672,564.38 : 17,488,482.71 = 7,166,762.56 : x
2. Step 2: Convert to fraction form
   12,672,564.38/17,488,482.71 = 7,166,762.56/x
3. Step 3: Cross multiply
   12,672,564.38x = 17,488,482.71 × 7,166,762.56
4. Step 4: Simplify right side
   12,672,564.38x = 125,335,803,081,401.50
5. Step 5: Solve for x
   x = 125,335,803,081,401.50/12,672,564.38
6. Step 6: Final answer
   x = 9,890,326.80