Finding the Fourth Proportional to 91,426.12, 137,035.50 and 38,802.76

Step by Step Solution

1. Step 1: Write the proportion equation
   91,426.12 : 137,035.50 = 38,802.76 : x
2. Step 2: Convert to fraction form
   91,426.12/137,035.50 = 38,802.76/x
3. Step 3: Cross multiply
   91,426.12x = 137,035.50 × 38,802.76
4. Step 4: Simplify right side
   91,426.12x = 5,317,355,617.98
5. Step 5: Solve for x
   x = 5,317,355,617.98/91,426.12
6. Step 6: Final answer
   x = 58,160.14