Finding the Fourth Proportional to 12,789,336.69, 19,197,661.63 and 5,506,403.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,789,336.69 : 19,197,661.63 = 5,506,403.13 : x
2. Step 2: Convert to fraction form
   12,789,336.69/19,197,661.63 = 5,506,403.13/x
3. Step 3: Cross multiply
   12,789,336.69x = 19,197,661.63 × 5,506,403.13
4. Step 4: Simplify right side
   12,789,336.69x = 105,710,064,088,112.89
5. Step 5: Solve for x
   x = 105,710,064,088,112.89/12,789,336.69
6. Step 6: Final answer
   x = 8,265,484.49