Finding the Fourth Proportional to 9,615,900.78, 13,269,940.62 and 5,264,985.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615,900.78 : 13,269,940.62 = 5,264,985.96 : x
2. Step 2: Convert to fraction form
   9,615,900.78/13,269,940.62 = 5,264,985.96/x
3. Step 3: Cross multiply
   9,615,900.78x = 13,269,940.62 × 5,264,985.96
4. Step 4: Simplify right side
   9,615,900.78x = 69,866,051,054,333.69
5. Step 5: Solve for x
   x = 69,866,051,054,333.69/9,615,900.78
6. Step 6: Final answer
   x = 7,265,679.28