Finding the Fourth Proportional to 9,139,984.80, 12,613,152.96 and 5,065,604.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,984.80 : 12,613,152.96 = 5,065,604.16 : x
2. Step 2: Convert to fraction form
   9,139,984.80/12,613,152.96 = 5,065,604.16/x
3. Step 3: Cross multiply
   9,139,984.80x = 12,613,152.96 × 5,065,604.16
4. Step 4: Simplify right side
   9,139,984.80x = 63,893,240,104,892.32
5. Step 5: Solve for x
   x = 63,893,240,104,892.32/9,139,984.80
6. Step 6: Final answer
   x = 6,990,519.30