Finding the Fourth Proportional to 42,368.69, 63,513.80 and 15,699.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,368.69 : 63,513.80 = 15,699.83 : x
2. Step 2: Convert to fraction form
   42,368.69/63,513.80 = 15,699.83/x
3. Step 3: Cross multiply
   42,368.69x = 63,513.80 × 15,699.83
4. Step 4: Simplify right side
   42,368.69x = 997,155,466.59
5. Step 5: Solve for x
   x = 997,155,466.59/42,368.69
6. Step 6: Final answer
   x = 23,535.20