Finding the Fourth Proportional to 71,002.87, 105,922.84 and 69,072.39

Step by Step Solution

1. Step 1: Write the proportion equation
   71,002.87 : 105,922.84 = 69,072.39 : x
2. Step 2: Convert to fraction form
   71,002.87/105,922.84 = 69,072.39/x
3. Step 3: Cross multiply
   71,002.87x = 105,922.84 × 69,072.39
4. Step 4: Simplify right side
   71,002.87x = 7,316,343,714.39
5. Step 5: Solve for x
   x = 7,316,343,714.39/71,002.87
6. Step 6: Final answer
   x = 103,042.93