Finding the Fourth Proportional to 78,647.31, 117,872.51 and 61,941.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,647.31 : 117,872.51 = 61,941.38 : x
2. Step 2: Convert to fraction form
   78,647.31/117,872.51 = 61,941.38/x
3. Step 3: Cross multiply
   78,647.31x = 117,872.51 × 61,941.38
4. Step 4: Simplify right side
   78,647.31x = 7,301,185,034.39
5. Step 5: Solve for x
   x = 7,301,185,034.39/78,647.31
6. Step 6: Final answer
   x = 92,834.52