Finding the Fourth Proportional to 42,788.70, 64,129.59 and 29,535.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,788.70 : 64,129.59 = 29,535.48 : x
2. Step 2: Convert to fraction form
   42,788.70/64,129.59 = 29,535.48/x
3. Step 3: Cross multiply
   42,788.70x = 64,129.59 × 29,535.48
4. Step 4: Simplify right side
   42,788.70x = 1,894,098,222.85
5. Step 5: Solve for x
   x = 1,894,098,222.85/42,788.70
6. Step 6: Final answer
   x = 44,266.32