Finding the Fourth Proportional to 31,184,786.07, 43,040,314.67 and 18,139,606.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,184,786.07 : 43,040,314.67 = 18,139,606.88 : x
2. Step 2: Convert to fraction form
   31,184,786.07/43,040,314.67 = 18,139,606.88/x
3. Step 3: Cross multiply
   31,184,786.07x = 43,040,314.67 × 18,139,606.88
4. Step 4: Simplify right side
   31,184,786.07x = 780,734,387,799,397.25
5. Step 5: Solve for x
   x = 780,734,387,799,397.25/31,184,786.07
6. Step 6: Final answer
   x = 25,035,746.15