Finding the Fourth Proportional to 13,077.42, 19,602.72 and 5,176.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.42 : 19,602.72 = 5,176.77 : x
2. Step 2: Convert to fraction form
   13,077.42/19,602.72 = 5,176.77/x
3. Step 3: Cross multiply
   13,077.42x = 19,602.72 × 5,176.77
4. Step 4: Simplify right side
   13,077.42x = 101,478,772.81
5. Step 5: Solve for x
   x = 101,478,772.81/13,077.42
6. Step 6: Final answer
   x = 7,759.85