Finding the Fourth Proportional to 144,739.59, 199,751.72 and 91,070.61

Step by Step Solution

1. Step 1: Write the proportion equation
   144,739.59 : 199,751.72 = 91,070.61 : x
2. Step 2: Convert to fraction form
   144,739.59/199,751.72 = 91,070.61/x
3. Step 3: Cross multiply
   144,739.59x = 199,751.72 × 91,070.61
4. Step 4: Simplify right side
   144,739.59x = 18,191,510,533.60
5. Step 5: Solve for x
   x = 18,191,510,533.60/144,739.59
6. Step 6: Final answer
   x = 125,684.41