Finding the Fourth Proportional to 116,763.48, 174,965.94 and 78,670.80

Step by Step Solution

1. Step 1: Write the proportion equation
   116,763.48 : 174,965.94 = 78,670.80 : x
2. Step 2: Convert to fraction form
   116,763.48/174,965.94 = 78,670.80/x
3. Step 3: Cross multiply
   116,763.48x = 174,965.94 × 78,670.80
4. Step 4: Simplify right side
   116,763.48x = 13,764,710,472.55
5. Step 5: Solve for x
   x = 13,764,710,472.55/116,763.48
6. Step 6: Final answer
   x = 117,885.41