Finding the Fourth Proportional to 69,080.30, 103,620.42 and 45,701.30

Step by Step Solution

1. Step 1: Write the proportion equation
   69,080.30 : 103,620.42 = 45,701.30 : x
2. Step 2: Convert to fraction form
   69,080.30/103,620.42 = 45,701.30/x
3. Step 3: Cross multiply
   69,080.30x = 103,620.42 × 45,701.30
4. Step 4: Simplify right side
   69,080.30x = 4,735,587,900.55
5. Step 5: Solve for x
   x = 4,735,587,900.55/69,080.30
6. Step 6: Final answer
   x = 68,551.93