Finding the Fourth Proportional to 42,199.10, 58,238.76 and 25,203.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,199.10 : 58,238.76 = 25,203.20 : x
2. Step 2: Convert to fraction form
   42,199.10/58,238.76 = 25,203.20/x
3. Step 3: Cross multiply
   42,199.10x = 58,238.76 × 25,203.20
4. Step 4: Simplify right side
   42,199.10x = 1,467,803,116.03
5. Step 5: Solve for x
   x = 1,467,803,116.03/42,199.10
6. Step 6: Final answer
   x = 34,782.81