Finding the Fourth Proportional to 31,315,088.16, 43,214,899.68 and 18,271,314.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,315,088.16 : 43,214,899.68 = 18,271,314.72 : x
2. Step 2: Convert to fraction form
   31,315,088.16/43,214,899.68 = 18,271,314.72/x
3. Step 3: Cross multiply
   31,315,088.16x = 43,214,899.68 × 18,271,314.72
4. Step 4: Simplify right side
   31,315,088.16x = 789,593,032,646,507.25
5. Step 5: Solve for x
   x = 789,593,032,646,507.25/31,315,088.16
6. Step 6: Final answer
   x = 25,214,459.84