Finding the Fourth Proportional to 21,366,145.89, 32,081,236.52 and 18,496,364.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,366,145.89 : 32,081,236.52 = 18,496,364.49 : x
2. Step 2: Convert to fraction form
   21,366,145.89/32,081,236.52 = 18,496,364.49/x
3. Step 3: Cross multiply
   21,366,145.89x = 32,081,236.52 × 18,496,364.49
4. Step 4: Simplify right side
   21,366,145.89x = 593,386,243,871,337.25
5. Step 5: Solve for x
   x = 593,386,243,871,337.25/21,366,145.89
6. Step 6: Final answer
   x = 27,772,263.98