Finding the Fourth Proportional to 10,898,632.88, 16,347,939.42 and 5,140,023.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,898,632.88 : 16,347,939.42 = 5,140,023.20 : x
2. Step 2: Convert to fraction form
   10,898,632.88/16,347,939.42 = 5,140,023.20/x
3. Step 3: Cross multiply
   10,898,632.88x = 16,347,939.42 × 5,140,023.20
4. Step 4: Simplify right side
   10,898,632.88x = 84,028,787,890,994.55
5. Step 5: Solve for x
   x = 84,028,787,890,994.55/10,898,632.88
6. Step 6: Final answer
   x = 7,710,030.13