Finding the Fourth Proportional to 81,586,545.30, 122,344,388.55 and 26,978,030.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,586,545.30 : 122,344,388.55 = 26,978,030.10 : x
2. Step 2: Convert to fraction form
   81,586,545.30/122,344,388.55 = 26,978,030.10/x
3. Step 3: Cross multiply
   81,586,545.30x = 122,344,388.55 × 26,978,030.10
4. Step 4: Simplify right side
   81,586,545.30x = 3,300,610,596,867,995.50
5. Step 5: Solve for x
   x = 3,300,610,596,867,995.50/81,586,545.30
6. Step 6: Final answer
   x = 40,455,329.79