Finding the Fourth Proportional to 16,886,100.68, 23,302,838.70 and 9,151,142.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,886,100.68 : 23,302,838.70 = 9,151,142.60 : x
2. Step 2: Convert to fraction form
   16,886,100.68/23,302,838.70 = 9,151,142.60/x
3. Step 3: Cross multiply
   16,886,100.68x = 23,302,838.70 × 9,151,142.60
4. Step 4: Simplify right side
   16,886,100.68x = 213,247,599,928,498.59
5. Step 5: Solve for x
   x = 213,247,599,928,498.59/16,886,100.68
6. Step 6: Final answer
   x = 12,628,587.50