Finding the Fourth Proportional to 114,250.56, 171,152.64 and 78,705.60

Step by Step Solution

1. Step 1: Write the proportion equation
   114,250.56 : 171,152.64 = 78,705.60 : x
2. Step 2: Convert to fraction form
   114,250.56/171,152.64 = 78,705.60/x
3. Step 3: Cross multiply
   114,250.56x = 171,152.64 × 78,705.60
4. Step 4: Simplify right side
   114,250.56x = 13,470,671,222.78
5. Step 5: Solve for x
   x = 13,470,671,222.78/114,250.56
6. Step 6: Final answer
   x = 117,904.64