Finding the Fourth Proportional to 42,030.32, 58,004.54 and 23,169.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,030.32 : 58,004.54 = 23,169.20 : x
2. Step 2: Convert to fraction form
   42,030.32/58,004.54 = 23,169.20/x
3. Step 3: Cross multiply
   42,030.32x = 58,004.54 × 23,169.20
4. Step 4: Simplify right side
   42,030.32x = 1,343,918,788.17
5. Step 5: Solve for x
   x = 1,343,918,788.17/42,030.32
6. Step 6: Final answer
   x = 31,974.98