Finding the Fourth Proportional to 42,592.16, 63,885.93 and 13,007.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,592.16 : 63,885.93 = 13,007.69 : x
2. Step 2: Convert to fraction form
   42,592.16/63,885.93 = 13,007.69/x
3. Step 3: Cross multiply
   42,592.16x = 63,885.93 × 13,007.69
4. Step 4: Simplify right side
   42,592.16x = 831,008,317.33
5. Step 5: Solve for x
   x = 831,008,317.33/42,592.16
6. Step 6: Final answer
   x = 19,510.83