Finding the Fourth Proportional to 10,071,510.17, 15,111,730.37 and 5,278,059.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,071,510.17 : 15,111,730.37 = 5,278,059.77 : x
2. Step 2: Convert to fraction form
   10,071,510.17/15,111,730.37 = 5,278,059.77/x
3. Step 3: Cross multiply
   10,071,510.17x = 15,111,730.37 × 5,278,059.77
4. Step 4: Simplify right side
   10,071,510.17x = 79,760,616,058,620.70
5. Step 5: Solve for x
   x = 79,760,616,058,620.70/10,071,510.17
6. Step 6: Final answer
   x = 7,919,429.63