Finding the Fourth Proportional to 42,528, 58,704.48 and 31,948.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,528 : 58,704.48 = 31,948.20 : x
2. Step 2: Convert to fraction form
   42,528/58,704.48 = 31,948.20/x
3. Step 3: Cross multiply
   42,528x = 58,704.48 × 31,948.20
4. Step 4: Simplify right side
   42,528x = 1,875,502,467.94
5. Step 5: Solve for x
   x = 1,875,502,467.94/42,528
6. Step 6: Final answer
   x = 44,100.42