Finding the Fourth Proportional to 40,152,994.41, 55,411,464.42 and 21,818,279.91

Step by Step Solution

1. Step 1: Write the proportion equation
   40,152,994.41 : 55,411,464.42 = 21,818,279.91 : x
2. Step 2: Convert to fraction form
   40,152,994.41/55,411,464.42 = 21,818,279.91/x
3. Step 3: Cross multiply
   40,152,994.41x = 55,411,464.42 × 21,818,279.91
4. Step 4: Simplify right side
   40,152,994.41x = 1,208,982,840,938,565.75
5. Step 5: Solve for x
   x = 1,208,982,840,938,565.75/40,152,994.41
6. Step 6: Final answer
   x = 30,109,406.75