Finding the Fourth Proportional to 13,206,111.76, 18,224,055.30 and 8,047,591.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,206,111.76 : 18,224,055.30 = 8,047,591.12 : x
2. Step 2: Convert to fraction form
   13,206,111.76/18,224,055.30 = 8,047,591.12/x
3. Step 3: Cross multiply
   13,206,111.76x = 18,224,055.30 × 8,047,591.12
4. Step 4: Simplify right side
   13,206,111.76x = 146,659,745,602,668.94
5. Step 5: Solve for x
   x = 146,659,745,602,668.94/13,206,111.76
6. Step 6: Final answer
   x = 11,105,444.83