Finding the Fourth Proportional to 35,061.48, 52,488.54 and 21,168.36

Step by Step Solution

1. Step 1: Write the proportion equation
   35,061.48 : 52,488.54 = 21,168.36 : x
2. Step 2: Convert to fraction form
   35,061.48/52,488.54 = 21,168.36/x
3. Step 3: Cross multiply
   35,061.48x = 52,488.54 × 21,168.36
4. Step 4: Simplify right side
   35,061.48x = 1,111,096,310.59
5. Step 5: Solve for x
   x = 1,111,096,310.59/35,061.48
6. Step 6: Final answer
   x = 31,689.94