Finding the Fourth Proportional to 12,949,108.80, 17,869,773.72 and 7,147,894.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,949,108.80 : 17,869,773.72 = 7,147,894.32 : x
2. Step 2: Convert to fraction form
   12,949,108.80/17,869,773.72 = 7,147,894.32/x
3. Step 3: Cross multiply
   12,949,108.80x = 17,869,773.72 × 7,147,894.32
4. Step 4: Simplify right side
   12,949,108.80x = 127,731,254,072,873.27
5. Step 5: Solve for x
   x = 127,731,254,072,873.27/12,949,108.80
6. Step 6: Final answer
   x = 9,864,096.14