Finding the Fourth Proportional to 7,002,782.58, 9,663,820.86 and 3,905,309.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002,782.58 : 9,663,820.86 = 3,905,309.30 : x
2. Step 2: Convert to fraction form
   7,002,782.58/9,663,820.86 = 3,905,309.30/x
3. Step 3: Cross multiply
   7,002,782.58x = 9,663,820.86 × 3,905,309.30
4. Step 4: Simplify right side
   7,002,782.58x = 37,740,209,411,466.76
5. Step 5: Solve for x
   x = 37,740,209,411,466.76/7,002,782.58
6. Step 6: Final answer
   x = 5,389,316.17