Finding the Fourth Proportional to 52,351.02, 78,526.17 and 21,185.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,351.02 : 78,526.17 = 21,185.82 : x
2. Step 2: Convert to fraction form
   52,351.02/78,526.17 = 21,185.82/x
3. Step 3: Cross multiply
   52,351.02x = 78,526.17 × 21,185.82
4. Step 4: Simplify right side
   52,351.02x = 1,663,641,302.91
5. Step 5: Solve for x
   x = 1,663,641,302.91/52,351.02
6. Step 6: Final answer
   x = 31,778.58