Finding the Fourth Proportional to 53,100.76, 79,687.32 and 21,935.80

Step by Step Solution

1. Step 1: Write the proportion equation
   53,100.76 : 79,687.32 = 21,935.80 : x
2. Step 2: Convert to fraction form
   53,100.76/79,687.32 = 21,935.80/x
3. Step 3: Cross multiply
   53,100.76x = 79,687.32 × 21,935.80
4. Step 4: Simplify right side
   53,100.76x = 1,748,005,114.06
5. Step 5: Solve for x
   x = 1,748,005,114.06/53,100.76
6. Step 6: Final answer
   x = 32,918.65