Finding the Fourth Proportional to 11,285,498.92, 15,578,754.42 and 7,619,381.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,285,498.92 : 15,578,754.42 = 7,619,381.72 : x
2. Step 2: Convert to fraction form
   11,285,498.92/15,578,754.42 = 7,619,381.72/x
3. Step 3: Cross multiply
   11,285,498.92x = 15,578,754.42 × 7,619,381.72
4. Step 4: Simplify right side
   11,285,498.92x = 118,700,476,648,117.20
5. Step 5: Solve for x
   x = 118,700,476,648,117.20/11,285,498.92
6. Step 6: Final answer
   x = 10,517,964.47