Finding the Fourth Proportional to 74,007.13, 111,061.73 and 64,136.47

Step by Step Solution

1. Step 1: Write the proportion equation
   74,007.13 : 111,061.73 = 64,136.47 : x
2. Step 2: Convert to fraction form
   74,007.13/111,061.73 = 64,136.47/x
3. Step 3: Cross multiply
   74,007.13x = 111,061.73 × 64,136.47
4. Step 4: Simplify right side
   74,007.13x = 7,123,107,314.29
5. Step 5: Solve for x
   x = 7,123,107,314.29/74,007.13
6. Step 6: Final answer
   x = 96,248.93