Finding the Fourth Proportional to 34,138.31, 51,196.37 and 13,077.23

Step by Step Solution

1. Step 1: Write the proportion equation
   34,138.31 : 51,196.37 = 13,077.23 : x
2. Step 2: Convert to fraction form
   34,138.31/51,196.37 = 13,077.23/x
3. Step 3: Cross multiply
   34,138.31x = 51,196.37 × 13,077.23
4. Step 4: Simplify right side
   34,138.31x = 669,506,482.37
5. Step 5: Solve for x
   x = 669,506,482.37/34,138.31
6. Step 6: Final answer
   x = 19,611.59