Finding the Fourth Proportional to 111,173.98, 153,443.91 and 70,878.46

Step by Step Solution

1. Step 1: Write the proportion equation
   111,173.98 : 153,443.91 = 70,878.46 : x
2. Step 2: Convert to fraction form
   111,173.98/153,443.91 = 70,878.46/x
3. Step 3: Cross multiply
   111,173.98x = 153,443.91 × 70,878.46
4. Step 4: Simplify right side
   111,173.98x = 10,875,868,037.18
5. Step 5: Solve for x
   x = 10,875,868,037.18/111,173.98
6. Step 6: Final answer
   x = 97,827.46