Finding the Fourth Proportional to 6,871,128.10, 10,307,858.55 and 2,078,779.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,871,128.10 : 10,307,858.55 = 2,078,779.30 : x
2. Step 2: Convert to fraction form
   6,871,128.10/10,307,858.55 = 2,078,779.30/x
3. Step 3: Cross multiply
   6,871,128.10x = 10,307,858.55 × 2,078,779.30
4. Step 4: Simplify right side
   6,871,128.10x = 21,427,762,981,068.02
5. Step 5: Solve for x
   x = 21,427,762,981,068.02/6,871,128.10
6. Step 6: Final answer
   x = 3,118,521.83