Finding the Fourth Proportional to 12,521,767.68, 17,280,466.56 and 7,015,374.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,521,767.68 : 17,280,466.56 = 7,015,374.72 : x
2. Step 2: Convert to fraction form
   12,521,767.68/17,280,466.56 = 7,015,374.72/x
3. Step 3: Cross multiply
   12,521,767.68x = 17,280,466.56 × 7,015,374.72
4. Step 4: Simplify right side
   12,521,767.68x = 121,228,948,254,829.34
5. Step 5: Solve for x
   x = 121,228,948,254,829.34/12,521,767.68
6. Step 6: Final answer
   x = 9,681,456.43