Finding the Fourth Proportional to 121,196.10, 181,733.31 and 70,611.48

Step by Step Solution

1. Step 1: Write the proportion equation
   121,196.10 : 181,733.31 = 70,611.48 : x
2. Step 2: Convert to fraction form
   121,196.10/181,733.31 = 70,611.48/x
3. Step 3: Cross multiply
   121,196.10x = 181,733.31 × 70,611.48
4. Step 4: Simplify right side
   121,196.10x = 12,832,457,984.40
5. Step 5: Solve for x
   x = 12,832,457,984.40/121,196.10
6. Step 6: Final answer
   x = 105,881.77