Finding the Fourth Proportional to 52,355.02, 78,532.17 and 21,189.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,355.02 : 78,532.17 = 21,189.82 : x
2. Step 2: Convert to fraction form
   52,355.02/78,532.17 = 21,189.82/x
3. Step 3: Cross multiply
   52,355.02x = 78,532.17 × 21,189.82
4. Step 4: Simplify right side
   52,355.02x = 1,664,082,546.51
5. Step 5: Solve for x
   x = 1,664,082,546.51/52,355.02
6. Step 6: Final answer
   x = 31,784.58