Finding the Fourth Proportional to 12,515,478.32, 18,776,146.69 and 3,879,127.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,515,478.32 : 18,776,146.69 = 3,879,127.40 : x
2. Step 2: Convert to fraction form
   12,515,478.32/18,776,146.69 = 3,879,127.40/x
3. Step 3: Cross multiply
   12,515,478.32x = 18,776,146.69 × 3,879,127.40
4. Step 4: Simplify right side
   12,515,478.32x = 72,835,064,988,019.75
5. Step 5: Solve for x
   x = 72,835,064,988,019.75/12,515,478.32
6. Step 6: Final answer
   x = 5,819,598.99