Finding the Fourth Proportional to 42,736.47, 58,978.40 and 25,746.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,736.47 : 58,978.40 = 25,746.05 : x
2. Step 2: Convert to fraction form
   42,736.47/58,978.40 = 25,746.05/x
3. Step 3: Cross multiply
   42,736.47x = 58,978.40 × 25,746.05
4. Step 4: Simplify right side
   42,736.47x = 1,518,460,522.28
5. Step 5: Solve for x
   x = 1,518,460,522.28/42,736.47
6. Step 6: Final answer
   x = 35,530.79