Finding the Fourth Proportional to 13,112,488.48, 19,664,008.78 and 5,540,044.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,112,488.48 : 19,664,008.78 = 5,540,044.72 : x
2. Step 2: Convert to fraction form
   13,112,488.48/19,664,008.78 = 5,540,044.72/x
3. Step 3: Cross multiply
   13,112,488.48x = 19,664,008.78 × 5,540,044.72
4. Step 4: Simplify right side
   13,112,488.48x = 108,939,488,015,672.64
5. Step 5: Solve for x
   x = 108,939,488,015,672.64/13,112,488.48
6. Step 6: Final answer
   x = 8,308,071.21