Finding the Fourth Proportional to 9,886,464.72, 13,642,943.40 and 5,535,143.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886,464.72 : 13,642,943.40 = 5,535,143.91 : x
2. Step 2: Convert to fraction form
   9,886,464.72/13,642,943.40 = 5,535,143.91/x
3. Step 3: Cross multiply
   9,886,464.72x = 13,642,943.40 × 5,535,143.91
4. Step 4: Simplify right side
   9,886,464.72x = 75,515,655,074,984.70
5. Step 5: Solve for x
   x = 75,515,655,074,984.70/9,886,464.72
6. Step 6: Final answer
   x = 7,638,287.01