Finding the Fourth Proportional to 171,150.58, 236,159.17 and 99,533.62

Step by Step Solution

1. Step 1: Write the proportion equation
   171,150.58 : 236,159.17 = 99,533.62 : x
2. Step 2: Convert to fraction form
   171,150.58/236,159.17 = 99,533.62/x
3. Step 3: Cross multiply
   171,150.58x = 236,159.17 × 99,533.62
4. Step 4: Simplify right side
   171,150.58x = 23,505,777,086.30
5. Step 5: Solve for x
   x = 23,505,777,086.30/171,150.58
6. Step 6: Final answer
   x = 137,339.75