Finding the Fourth Proportional to 58,052.05, 87,116.90 and 21,116.05

Step by Step Solution

1. Step 1: Write the proportion equation
   58,052.05 : 87,116.90 = 21,116.05 : x
2. Step 2: Convert to fraction form
   58,052.05/87,116.90 = 21,116.05/x
3. Step 3: Cross multiply
   58,052.05x = 87,116.90 × 21,116.05
4. Step 4: Simplify right side
   58,052.05x = 1,839,564,816.25
5. Step 5: Solve for x
   x = 1,839,564,816.25/58,052.05
6. Step 6: Final answer
   x = 31,688.20