Finding the Fourth Proportional to 118,611.29, 163,667.42 and 70,854.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,611.29 : 163,667.42 = 70,854.50 : x
2. Step 2: Convert to fraction form
   118,611.29/163,667.42 = 70,854.50/x
3. Step 3: Cross multiply
   118,611.29x = 163,667.42 × 70,854.50
4. Step 4: Simplify right side
   118,611.29x = 11,596,573,210.39
5. Step 5: Solve for x
   x = 11,596,573,210.39/118,611.29
6. Step 6: Final answer
   x = 97,769.56