Finding the Fourth Proportional to 9,998,521.54, 13,799,081.94 and 5,647,888.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,998,521.54 : 13,799,081.94 = 5,647,888.10 : x
2. Step 2: Convert to fraction form
   9,998,521.54/13,799,081.94 = 5,647,888.10/x
3. Step 3: Cross multiply
   9,998,521.54x = 13,799,081.94 × 5,647,888.10
4. Step 4: Simplify right side
   9,998,521.54x = 77,935,670,615,549.20
5. Step 5: Solve for x
   x = 77,935,670,615,549.20/9,998,521.54
6. Step 6: Final answer
   x = 7,794,719.48