Finding the Fourth Proportional to 10,533.98, 15,810.54 and 5,607.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,533.98 : 15,810.54 = 5,607.78 : x
2. Step 2: Convert to fraction form
   10,533.98/15,810.54 = 5,607.78/x
3. Step 3: Cross multiply
   10,533.98x = 15,810.54 × 5,607.78
4. Step 4: Simplify right side
   10,533.98x = 88,662,030.00
5. Step 5: Solve for x
   x = 88,662,030.00/10,533.98
6. Step 6: Final answer
   x = 8,416.76