Finding the Fourth Proportional to 78,018.29, 107,669.10 and 47,805.29

Step by Step Solution

1. Step 1: Write the proportion equation
   78,018.29 : 107,669.10 = 47,805.29 : x
2. Step 2: Convert to fraction form
   78,018.29/107,669.10 = 47,805.29/x
3. Step 3: Cross multiply
   78,018.29x = 107,669.10 × 47,805.29
4. Step 4: Simplify right side
   78,018.29x = 5,147,151,772.17
5. Step 5: Solve for x
   x = 5,147,151,772.17/78,018.29
6. Step 6: Final answer
   x = 65,973.66