Finding the Fourth Proportional to 12,959.02, 19,435.60 and 5,061.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,959.02 : 19,435.60 = 5,061.72 : x
2. Step 2: Convert to fraction form
   12,959.02/19,435.60 = 5,061.72/x
3. Step 3: Cross multiply
   12,959.02x = 19,435.60 × 5,061.72
4. Step 4: Simplify right side
   12,959.02x = 98,377,565.23
5. Step 5: Solve for x
   x = 98,377,565.23/12,959.02
6. Step 6: Final answer
   x = 7,591.44