Finding the Fourth Proportional to 7,111,690.56, 10,663,215.91 and 2,788,561.33

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111,690.56 : 10,663,215.91 = 2,788,561.33 : x
2. Step 2: Convert to fraction form
   7,111,690.56/10,663,215.91 = 2,788,561.33/x
3. Step 3: Cross multiply
   7,111,690.56x = 10,663,215.91 × 2,788,561.33
4. Step 4: Simplify right side
   7,111,690.56x = 29,735,031,506,437.32
5. Step 5: Solve for x
   x = 29,735,031,506,437.32/7,111,690.56
6. Step 6: Final answer
   x = 4,181,148.10