Finding the Fourth Proportional to 148,530.10, 222,795.15 and 78,546.10

Step by Step Solution

1. Step 1: Write the proportion equation
   148,530.10 : 222,795.15 = 78,546.10 : x
2. Step 2: Convert to fraction form
   148,530.10/222,795.15 = 78,546.10/x
3. Step 3: Cross multiply
   148,530.10x = 222,795.15 × 78,546.10
4. Step 4: Simplify right side
   148,530.10x = 17,499,690,131.42
5. Step 5: Solve for x
   x = 17,499,690,131.42/148,530.10
6. Step 6: Final answer
   x = 117,819.15