Finding the Fourth Proportional to 17,670.48, 26,499.22 and 5,187.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,670.48 : 26,499.22 = 5,187.30 : x
2. Step 2: Convert to fraction form
   17,670.48/26,499.22 = 5,187.30/x
3. Step 3: Cross multiply
   17,670.48x = 26,499.22 × 5,187.30
4. Step 4: Simplify right side
   17,670.48x = 137,459,403.91
5. Step 5: Solve for x
   x = 137,459,403.91/17,670.48
6. Step 6: Final answer
   x = 7,779.04