Finding the Fourth Proportional to 21,853,457.16, 30,156,980.42 and 12,063,691.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,853,457.16 : 30,156,980.42 = 12,063,691.10 : x
2. Step 2: Convert to fraction form
   21,853,457.16/30,156,980.42 = 12,063,691.10/x
3. Step 3: Cross multiply
   21,853,457.16x = 30,156,980.42 × 12,063,691.10
4. Step 4: Simplify right side
   21,853,457.16x = 363,804,496,295,628.25
5. Step 5: Solve for x
   x = 363,804,496,295,628.25/21,853,457.16
6. Step 6: Final answer
   x = 16,647,457.36