Finding the Fourth Proportional to 148,482.72, 222,840.72 and 81,968.76

Step by Step Solution

1. Step 1: Write the proportion equation
   148,482.72 : 222,840.72 = 81,968.76 : x
2. Step 2: Convert to fraction form
   148,482.72/222,840.72 = 81,968.76/x
3. Step 3: Cross multiply
   148,482.72x = 222,840.72 × 81,968.76
4. Step 4: Simplify right side
   148,482.72x = 18,265,977,495.91
5. Step 5: Solve for x
   x = 18,265,977,495.91/148,482.72
6. Step 6: Final answer
   x = 123,017.53