Finding the Fourth Proportional to 12,960,784.54, 17,885,535.51 and 7,159,441.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,960,784.54 : 17,885,535.51 = 7,159,441.42 : x
2. Step 2: Convert to fraction form
   12,960,784.54/17,885,535.51 = 7,159,441.42/x
3. Step 3: Cross multiply
   12,960,784.54x = 17,885,535.51 × 7,159,441.42
4. Step 4: Simplify right side
   12,960,784.54x = 128,050,443,749,174.83
5. Step 5: Solve for x
   x = 128,050,443,749,174.83/12,960,784.54
6. Step 6: Final answer
   x = 9,879,837.39