Finding the Fourth Proportional to 238,958.01, 358,499.48 and 89,199.59

Step by Step Solution

1. Step 1: Write the proportion equation
   238,958.01 : 358,499.48 = 89,199.59 : x
2. Step 2: Convert to fraction form
   238,958.01/358,499.48 = 89,199.59/x
3. Step 3: Cross multiply
   238,958.01x = 358,499.48 × 89,199.59
4. Step 4: Simplify right side
   238,958.01x = 31,978,006,631.21
5. Step 5: Solve for x
   x = 31,978,006,631.21/238,958.01
6. Step 6: Final answer
   x = 133,822.70