Finding the Fourth Proportional to 42,126.90, 58,147.74 and 25,143.02

Step by Step Solution

1. Step 1: Write the proportion equation
   42,126.90 : 58,147.74 = 25,143.02 : x
2. Step 2: Convert to fraction form
   42,126.90/58,147.74 = 25,143.02/x
3. Step 3: Cross multiply
   42,126.90x = 58,147.74 × 25,143.02
4. Step 4: Simplify right side
   42,126.90x = 1,462,009,789.77
5. Step 5: Solve for x
   x = 1,462,009,789.77/42,126.90
6. Step 6: Final answer
   x = 34,704.90