Finding the Fourth Proportional to 7,123,828.67, 9,830,891.89 and 3,860,643.23

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123,828.67 : 9,830,891.89 = 3,860,643.23 : x
2. Step 2: Convert to fraction form
   7,123,828.67/9,830,891.89 = 3,860,643.23/x
3. Step 3: Cross multiply
   7,123,828.67x = 9,830,891.89 × 3,860,643.23
4. Step 4: Simplify right side
   7,123,828.67x = 37,953,566,219,990.41
5. Step 5: Solve for x
   x = 37,953,566,219,990.41/7,123,828.67
6. Step 6: Final answer
   x = 5,327,692.17