Finding the Fourth Proportional to 69,045.28, 103,699.22 and 42,932.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,045.28 : 103,699.22 = 42,932.50 : x
2. Step 2: Convert to fraction form
   69,045.28/103,699.22 = 42,932.50/x
3. Step 3: Cross multiply
   69,045.28x = 103,699.22 × 42,932.50
4. Step 4: Simplify right side
   69,045.28x = 4,452,066,762.65
5. Step 5: Solve for x
   x = 4,452,066,762.65/69,045.28
6. Step 6: Final answer
   x = 64,480.39