Finding the Fourth Proportional to 55,991.16, 83,957.58 and 20,901.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,991.16 : 83,957.58 = 20,901.96 : x
2. Step 2: Convert to fraction form
   55,991.16/83,957.58 = 20,901.96/x
3. Step 3: Cross multiply
   55,991.16x = 83,957.58 × 20,901.96
4. Step 4: Simplify right side
   55,991.16x = 1,754,877,978.86
5. Step 5: Solve for x
   x = 1,754,877,978.86/55,991.16
6. Step 6: Final answer
   x = 31,342.05