Finding the Fourth Proportional to 10,006.78, 15,012.63 and 7,051.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,006.78 : 15,012.63 = 7,051.00 : x
2. Step 2: Convert to fraction form
   10,006.78/15,012.63 = 7,051.00/x
3. Step 3: Cross multiply
   10,006.78x = 15,012.63 × 7,051.00
4. Step 4: Simplify right side
   10,006.78x = 105,854,022.36
5. Step 5: Solve for x
   x = 105,854,022.36/10,006.78
6. Step 6: Final answer
   x = 10,578.23