Finding the Fourth Proportional to 8,178,978.60, 12,269,051.10 and 2,499,193.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,178,978.60 : 12,269,051.10 = 2,499,193.80 : x
2. Step 2: Convert to fraction form
   8,178,978.60/12,269,051.10 = 2,499,193.80/x
3. Step 3: Cross multiply
   8,178,978.60x = 12,269,051.10 × 2,499,193.80
4. Step 4: Simplify right side
   8,178,978.60x = 30,662,736,441,003.18
5. Step 5: Solve for x
   x = 30,662,736,441,003.18/8,178,978.60
6. Step 6: Final answer
   x = 3,748,968.90