Finding the Fourth Proportional to 72,293,145.20, 99,763,518.88 and 40,930,384.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,293,145.20 : 99,763,518.88 = 40,930,384.92 : x
2. Step 2: Convert to fraction form
   72,293,145.20/99,763,518.88 = 40,930,384.92/x
3. Step 3: Cross multiply
   72,293,145.20x = 99,763,518.88 × 40,930,384.92
4. Step 4: Simplify right side
   72,293,145.20x = 4,083,359,228,732,087.50
5. Step 5: Solve for x
   x = 4,083,359,228,732,087.50/72,293,145.20
6. Step 6: Final answer
   x = 56,483,352.85