Finding the Fourth Proportional to 40,152,992.92, 55,411,462.37 and 21,818,278.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,152,992.92 : 55,411,462.37 = 21,818,278.42 : x
2. Step 2: Convert to fraction form
   40,152,992.92/55,411,462.37 = 21,818,278.42/x
3. Step 3: Cross multiply
   40,152,992.92x = 55,411,462.37 × 21,818,278.42
4. Step 4: Simplify right side
   40,152,992.92x = 1,208,982,713,564,030.25
5. Step 5: Solve for x
   x = 1,208,982,713,564,030.25/40,152,992.92
6. Step 6: Final answer
   x = 30,109,404.70