Finding the Fourth Proportional to 42,148.71, 58,178.30 and 26,021.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,148.71 : 58,178.30 = 26,021.10 : x
2. Step 2: Convert to fraction form
   42,148.71/58,178.30 = 26,021.10/x
3. Step 3: Cross multiply
   42,148.71x = 58,178.30 × 26,021.10
4. Step 4: Simplify right side
   42,148.71x = 1,513,863,362.13
5. Step 5: Solve for x
   x = 1,513,863,362.13/42,148.71
6. Step 6: Final answer
   x = 35,917.19