Finding the Fourth Proportional to 52,167.24, 78,075.90 and 42,806.88

Step by Step Solution

1. Step 1: Write the proportion equation
   52,167.24 : 78,075.90 = 42,806.88 : x
2. Step 2: Convert to fraction form
   52,167.24/78,075.90 = 42,806.88/x
3. Step 3: Cross multiply
   52,167.24x = 78,075.90 × 42,806.88
4. Step 4: Simplify right side
   52,167.24x = 3,342,185,682.19
5. Step 5: Solve for x
   x = 3,342,185,682.19/52,167.24
6. Step 6: Final answer
   x = 64,066.75