Finding the Fourth Proportional to 78,684.31, 118,061.36 and 41,235.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,684.31 : 118,061.36 = 41,235.48 : x
2. Step 2: Convert to fraction form
   78,684.31/118,061.36 = 41,235.48/x
3. Step 3: Cross multiply
   78,684.31x = 118,061.36 × 41,235.48
4. Step 4: Simplify right side
   78,684.31x = 4,868,316,642.88
5. Step 5: Solve for x
   x = 4,868,316,642.88/78,684.31
6. Step 6: Final answer
   x = 61,871.50