Finding the Fourth Proportional to 9,969,215.63, 14,952,494.60 and 2,780,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969,215.63 : 14,952,494.60 = 2,780,147.50 : x
2. Step 2: Convert to fraction form
   9,969,215.63/14,952,494.60 = 2,780,147.50/x
3. Step 3: Cross multiply
   9,969,215.63x = 14,952,494.60 × 2,780,147.50
4. Step 4: Simplify right side
   9,969,215.63x = 41,570,140,429,671.53
5. Step 5: Solve for x
   x = 41,570,140,429,671.53/9,969,215.63
6. Step 6: Final answer
   x = 4,169,850.67