Finding the Fourth Proportional to 9,886,466.72, 13,642,946.16 and 5,535,145.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886,466.72 : 13,642,946.16 = 5,535,145.91 : x
2. Step 2: Convert to fraction form
   9,886,466.72/13,642,946.16 = 5,535,145.91/x
3. Step 3: Cross multiply
   9,886,466.72x = 13,642,946.16 × 5,535,145.91
4. Step 4: Simplify right side
   9,886,466.72x = 75,515,697,637,874.20
5. Step 5: Solve for x
   x = 75,515,697,637,874.20/9,886,466.72
6. Step 6: Final answer
   x = 7,638,289.77