Finding the Fourth Proportional to 78,075.42, 107,743.35 and 42,264.51

Step by Step Solution

1. Step 1: Write the proportion equation
   78,075.42 : 107,743.35 = 42,264.51 : x
2. Step 2: Convert to fraction form
   78,075.42/107,743.35 = 42,264.51/x
3. Step 3: Cross multiply
   78,075.42x = 107,743.35 × 42,264.51
4. Step 4: Simplify right side
   78,075.42x = 4,553,719,893.51
5. Step 5: Solve for x
   x = 4,553,719,893.51/78,075.42
6. Step 6: Final answer
   x = 58,324.63