Finding the Fourth Proportional to 9,402,815.69, 12,970,388.10 and 5,912,630.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,402,815.69 : 12,970,388.10 = 5,912,630.69 : x
2. Step 2: Convert to fraction form
   9,402,815.69/12,970,388.10 = 5,912,630.69/x
3. Step 3: Cross multiply
   9,402,815.69x = 12,970,388.10 × 5,912,630.69
4. Step 4: Simplify right side
   9,402,815.69x = 76,689,114,738,291.09
5. Step 5: Solve for x
   x = 76,689,114,738,291.09/9,402,815.69
6. Step 6: Final answer
   x = 8,155,973.41