Finding the Fourth Proportional to 16,623,123.10, 24,953,347.05 and 12,853,318.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,623,123.10 : 24,953,347.05 = 12,853,318.30 : x
2. Step 2: Convert to fraction form
   16,623,123.10/24,953,347.05 = 12,853,318.30/x
3. Step 3: Cross multiply
   16,623,123.10x = 24,953,347.05 × 12,853,318.30
4. Step 4: Simplify right side
   16,623,123.10x = 320,733,312,284,016.06
5. Step 5: Solve for x
   x = 320,733,312,284,016.06/16,623,123.10
6. Step 6: Final answer
   x = 19,294,407.58