Finding the Fourth Proportional to 12,233,496.15, 18,349,661.03 and 4,145,678.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,233,496.15 : 18,349,661.03 = 4,145,678.55 : x
2. Step 2: Convert to fraction form
   12,233,496.15/18,349,661.03 = 4,145,678.55/x
3. Step 3: Cross multiply
   12,233,496.15x = 18,349,661.03 × 4,145,678.55
4. Step 4: Simplify right side
   12,233,496.15x = 76,071,796,111,113.50
5. Step 5: Solve for x
   x = 76,071,796,111,113.50/12,233,496.15
6. Step 6: Final answer
   x = 6,218,320.19