Finding the Fourth Proportional to 78,505.04, 117,597.12 and 65,314.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,505.04 : 117,597.12 = 65,314.96 : x
2. Step 2: Convert to fraction form
   78,505.04/117,597.12 = 65,314.96/x
3. Step 3: Cross multiply
   78,505.04x = 117,597.12 × 65,314.96
4. Step 4: Simplify right side
   78,505.04x = 7,680,851,188.92
5. Step 5: Solve for x
   x = 7,680,851,188.92/78,505.04
6. Step 6: Final answer
   x = 97,838.96