Finding the Fourth Proportional to 12,945,269.34, 17,864,453.61 and 7,144,050.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945,269.34 : 17,864,453.61 = 7,144,050.15 : x
2. Step 2: Convert to fraction form
   12,945,269.34/17,864,453.61 = 7,144,050.15/x
3. Step 3: Cross multiply
   12,945,269.34x = 17,864,453.61 × 7,144,050.15
4. Step 4: Simplify right side
   12,945,269.34x = 127,624,552,492,188.55
5. Step 5: Solve for x
   x = 127,624,552,492,188.55/12,945,269.34
6. Step 6: Final answer
   x = 9,858,779.23