Finding the Fourth Proportional to 12,498.02, 17,250.69 and 7,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.02 : 17,250.69 = 7,779.50 : x
2. Step 2: Convert to fraction form
   12,498.02/17,250.69 = 7,779.50/x
3. Step 3: Cross multiply
   12,498.02x = 17,250.69 × 7,779.50
4. Step 4: Simplify right side
   12,498.02x = 134,201,742.86
5. Step 5: Solve for x
   x = 134,201,742.86/12,498.02
6. Step 6: Final answer
   x = 10,737.84