Finding the Fourth Proportional to 91,345.50, 137,035.53 and 42,097.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,345.50 : 137,035.53 = 42,097.50 : x
2. Step 2: Convert to fraction form
   91,345.50/137,035.53 = 42,097.50/x
3. Step 3: Cross multiply
   91,345.50x = 137,035.53 × 42,097.50
4. Step 4: Simplify right side
   91,345.50x = 5,768,853,224.18
5. Step 5: Solve for x
   x = 5,768,853,224.18/91,345.50
6. Step 6: Final answer
   x = 63,154.21