Finding the Fourth Proportional to 13,044,571.05, 18,003,168.80 and 7,887,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,044,571.05 : 18,003,168.80 = 7,887,969.50 : x
2. Step 2: Convert to fraction form
   13,044,571.05/18,003,168.80 = 7,887,969.50/x
3. Step 3: Cross multiply
   13,044,571.05x = 18,003,168.80 × 7,887,969.50
4. Step 4: Simplify right side
   13,044,571.05x = 142,008,446,268,295.94
5. Step 5: Solve for x
   x = 142,008,446,268,295.94/13,044,571.05
6. Step 6: Final answer
   x = 10,886,402.15