Finding the Fourth Proportional to 90,332.28, 135,499.56 and 42,951.84

Step by Step Solution

1. Step 1: Write the proportion equation
   90,332.28 : 135,499.56 = 42,951.84 : x
2. Step 2: Convert to fraction form
   90,332.28/135,499.56 = 42,951.84/x
3. Step 3: Cross multiply
   90,332.28x = 135,499.56 × 42,951.84
4. Step 4: Simplify right side
   90,332.28x = 5,819,955,421.19
5. Step 5: Solve for x
   x = 5,819,955,421.19/90,332.28
6. Step 6: Final answer
   x = 64,428.30