Finding the Fourth Proportional to 21,613,663.85, 32,368,546.48 and 12,363,591.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,613,663.85 : 32,368,546.48 = 12,363,591.94 : x
2. Step 2: Convert to fraction form
   21,613,663.85/32,368,546.48 = 12,363,591.94/x
3. Step 3: Cross multiply
   21,613,663.85x = 32,368,546.48 × 12,363,591.94
4. Step 4: Simplify right side
   21,613,663.85x = 400,191,500,369,643.38
5. Step 5: Solve for x
   x = 400,191,500,369,643.38/21,613,663.85
6. Step 6: Final answer
   x = 18,515,671.53