Finding the Fourth Proportional to 159,047.30, 219,485.72 and 91,065.32

Step by Step Solution

1. Step 1: Write the proportion equation
   159,047.30 : 219,485.72 = 91,065.32 : x
2. Step 2: Convert to fraction form
   159,047.30/219,485.72 = 91,065.32/x
3. Step 3: Cross multiply
   159,047.30x = 219,485.72 × 91,065.32
4. Step 4: Simplify right side
   159,047.30x = 19,987,538,103.61
5. Step 5: Solve for x
   x = 19,987,538,103.61/159,047.30
6. Step 6: Final answer
   x = 125,670.40