Finding the Fourth Proportional to 69,800, 104,733.60 and 34,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,800 : 104,733.60 = 34,742.72 : x
2. Step 2: Convert to fraction form
   69,800/104,733.60 = 34,742.72/x
3. Step 3: Cross multiply
   69,800x = 104,733.60 × 34,742.72
4. Step 4: Simplify right side
   69,800x = 3,638,730,139.39
5. Step 5: Solve for x
   x = 3,638,730,139.39/69,800
6. Step 6: Final answer
   x = 52,130.80