Finding the Fourth Proportional to 69,343.60, 103,945.96 and 34,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,343.60 : 103,945.96 = 34,308.72 : x
2. Step 2: Convert to fraction form
   69,343.60/103,945.96 = 34,308.72/x
3. Step 3: Cross multiply
   69,343.60x = 103,945.96 × 34,308.72
4. Step 4: Simplify right side
   69,343.60x = 3,566,252,836.77
5. Step 5: Solve for x
   x = 3,566,252,836.77/69,343.60
6. Step 6: Final answer
   x = 51,428.72