Finding the Fourth Proportional to 10,048.79, 15,069.33 and 4,779.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,048.79 : 15,069.33 = 4,779.74 : x
2. Step 2: Convert to fraction form
   10,048.79/15,069.33 = 4,779.74/x
3. Step 3: Cross multiply
   10,048.79x = 15,069.33 × 4,779.74
4. Step 4: Simplify right side
   10,048.79x = 72,027,404.03
5. Step 5: Solve for x
   x = 72,027,404.03/10,048.79
6. Step 6: Final answer
   x = 7,167.77