Finding the Fourth Proportional to 9,238,018.96, 12,748,201.68 and 5,107,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238,018.96 : 12,748,201.68 = 5,107,978.72 : x
2. Step 2: Convert to fraction form
   9,238,018.96/12,748,201.68 = 5,107,978.72/x
3. Step 3: Cross multiply
   9,238,018.96x = 12,748,201.68 × 5,107,978.72
4. Step 4: Simplify right side
   9,238,018.96x = 65,117,542,899,708.24
5. Step 5: Solve for x
   x = 65,117,542,899,708.24/9,238,018.96
6. Step 6: Final answer
   x = 7,048,864.39