Finding the Fourth Proportional to 239,274.32, 358,973.78 and 89,526.32

Step by Step Solution

1. Step 1: Write the proportion equation
   239,274.32 : 358,973.78 = 89,526.32 : x
2. Step 2: Convert to fraction form
   239,274.32/358,973.78 = 89,526.32/x
3. Step 3: Cross multiply
   239,274.32x = 358,973.78 × 89,526.32
4. Step 4: Simplify right side
   239,274.32x = 32,137,601,499.89
5. Step 5: Solve for x
   x = 32,137,601,499.89/239,274.32
6. Step 6: Final answer
   x = 134,312.79