Finding the Fourth Proportional to 42,428.01, 58,564.38 and 30,525.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,428.01 : 58,564.38 = 30,525.93 : x
2. Step 2: Convert to fraction form
   42,428.01/58,564.38 = 30,525.93/x
3. Step 3: Cross multiply
   42,428.01x = 58,564.38 × 30,525.93
4. Step 4: Simplify right side
   42,428.01x = 1,787,732,164.37
5. Step 5: Solve for x
   x = 1,787,732,164.37/42,428.01
6. Step 6: Final answer
   x = 42,135.66