Finding the Fourth Proportional to 101,399.58, 151,356.67 and 89,429.00

Step by Step Solution

1. Step 1: Write the proportion equation
   101,399.58 : 151,356.67 = 89,429.00 : x
2. Step 2: Convert to fraction form
   101,399.58/151,356.67 = 89,429.00/x
3. Step 3: Cross multiply
   101,399.58x = 151,356.67 × 89,429.00
4. Step 4: Simplify right side
   101,399.58x = 13,535,674,661.07
5. Step 5: Solve for x
   x = 13,535,674,661.07/101,399.58
6. Step 6: Final answer
   x = 133,488.47