Finding the Fourth Proportional to 71,004.72, 105,925.60 and 69,074.24

Step by Step Solution

1. Step 1: Write the proportion equation
   71,004.72 : 105,925.60 = 69,074.24 : x
2. Step 2: Convert to fraction form
   71,004.72/105,925.60 = 69,074.24/x
3. Step 3: Cross multiply
   71,004.72x = 105,925.60 × 69,074.24
4. Step 4: Simplify right side
   71,004.72x = 7,316,730,316.54
5. Step 5: Solve for x
   x = 7,316,730,316.54/71,004.72
6. Step 6: Final answer
   x = 103,045.69