Finding the Fourth Proportional to 143,870.00, 198,459.18 and 90,061.56

Step by Step Solution

1. Step 1: Write the proportion equation
   143,870.00 : 198,459.18 = 90,061.56 : x
2. Step 2: Convert to fraction form
   143,870.00/198,459.18 = 90,061.56/x
3. Step 3: Cross multiply
   143,870.00x = 198,459.18 × 90,061.56
4. Step 4: Simplify right side
   143,870.00x = 17,873,543,347.12
5. Step 5: Solve for x
   x = 17,873,543,347.12/143,870.00
6. Step 6: Final answer
   x = 124,233.99