Finding the Fourth Proportional to 61,362.72, 91,988.67 and 42,651.56

Step by Step Solution

1. Step 1: Write the proportion equation
   61,362.72 : 91,988.67 = 42,651.56 : x
2. Step 2: Convert to fraction form
   61,362.72/91,988.67 = 42,651.56/x
3. Step 3: Cross multiply
   61,362.72x = 91,988.67 × 42,651.56
4. Step 4: Simplify right side
   61,362.72x = 3,923,460,277.83
5. Step 5: Solve for x
   x = 3,923,460,277.83/61,362.72
6. Step 6: Final answer
   x = 63,938.83