Finding the Fourth Proportional to 42,193,654.96, 63,269,545.12 and 13,436,043.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,193,654.96 : 63,269,545.12 = 13,436,043.76 : x
2. Step 2: Convert to fraction form
   42,193,654.96/63,269,545.12 = 13,436,043.76/x
3. Step 3: Cross multiply
   42,193,654.96x = 63,269,545.12 × 13,436,043.76
4. Step 4: Simplify right side
   42,193,654.96x = 850,092,376,907,614.38
5. Step 5: Solve for x
   x = 850,092,376,907,614.38/42,193,654.96
6. Step 6: Final answer
   x = 20,147,398.41