Finding the Fourth Proportional to 15,499.31, 23,248.98 and 5,111.06

Step by Step Solution

1. Step 1: Write the proportion equation
   15,499.31 : 23,248.98 = 5,111.06 : x
2. Step 2: Convert to fraction form
   15,499.31/23,248.98 = 5,111.06/x
3. Step 3: Cross multiply
   15,499.31x = 23,248.98 × 5,111.06
4. Step 4: Simplify right side
   15,499.31x = 118,826,989.84
5. Step 5: Solve for x
   x = 118,826,989.84/15,499.31
6. Step 6: Final answer
   x = 7,666.60