Finding the Fourth Proportional to 42,738.60, 58,981.34 and 25,748.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,738.60 : 58,981.34 = 25,748.17 : x
2. Step 2: Convert to fraction form
   42,738.60/58,981.34 = 25,748.17/x
3. Step 3: Cross multiply
   42,738.60x = 58,981.34 × 25,748.17
4. Step 4: Simplify right side
   42,738.60x = 1,518,661,569.15
5. Step 5: Solve for x
   x = 1,518,661,569.15/42,738.60
6. Step 6: Final answer
   x = 35,533.72