Finding the Fourth Proportional to 28,294,047.63, 42,441,065.98 and 12,109,504.05

Step by Step Solution

1. Step 1: Write the proportion equation
   28,294,047.63 : 42,441,065.98 = 12,109,504.05 : x
2. Step 2: Convert to fraction form
   28,294,047.63/42,441,065.98 = 12,109,504.05/x
3. Step 3: Cross multiply
   28,294,047.63x = 42,441,065.98 × 12,109,504.05
4. Step 4: Simplify right side
   28,294,047.63x = 513,940,260,340,853.50
5. Step 5: Solve for x
   x = 513,940,260,340,853.50/28,294,047.63
6. Step 6: Final answer
   x = 18,164,253.73