Finding the Fourth Proportional to 153,390.31, 229,728.72 and 148,068.73

Step by Step Solution

1. Step 1: Write the proportion equation
   153,390.31 : 229,728.72 = 148,068.73 : x
2. Step 2: Convert to fraction form
   153,390.31/229,728.72 = 148,068.73/x
3. Step 3: Cross multiply
   153,390.31x = 229,728.72 × 148,068.73
4. Step 4: Simplify right side
   153,390.31x = 34,015,638,756.54
5. Step 5: Solve for x
   x = 34,015,638,756.54/153,390.31
6. Step 6: Final answer
   x = 221,758.71