Finding the Fourth Proportional to 78,061.08, 117,096.48 and 31,307.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,061.08 : 117,096.48 = 31,307.88 : x
2. Step 2: Convert to fraction form
   78,061.08/117,096.48 = 31,307.88/x
3. Step 3: Cross multiply
   78,061.08x = 117,096.48 × 31,307.88
4. Step 4: Simplify right side
   78,061.08x = 3,666,042,544.26
5. Step 5: Solve for x
   x = 3,666,042,544.26/78,061.08
6. Step 6: Final answer
   x = 46,963.77