Finding the Fourth Proportional to 111,172.98, 153,442.53 and 70,877.46

Step by Step Solution

1. Step 1: Write the proportion equation
   111,172.98 : 153,442.53 = 70,877.46 : x
2. Step 2: Convert to fraction form
   111,172.98/153,442.53 = 70,877.46/x
3. Step 3: Cross multiply
   111,172.98x = 153,442.53 × 70,877.46
4. Step 4: Simplify right side
   111,172.98x = 10,875,616,782.37
5. Step 5: Solve for x
   x = 10,875,616,782.37/111,172.98
6. Step 6: Final answer
   x = 97,826.08