Finding the Fourth Proportional to 69,433.59, 103,540.70 and 68,802.10

Step by Step Solution

1. Step 1: Write the proportion equation
   69,433.59 : 103,540.70 = 68,802.10 : x
2. Step 2: Convert to fraction form
   69,433.59/103,540.70 = 68,802.10/x
3. Step 3: Cross multiply
   69,433.59x = 103,540.70 × 68,802.10
4. Step 4: Simplify right side
   69,433.59x = 7,123,817,595.47
5. Step 5: Solve for x
   x = 7,123,817,595.47/69,433.59
6. Step 6: Final answer
   x = 102,599.01