Finding the Fourth Proportional to 78,567.93, 108,422.16 and 42,758.55

Step by Step Solution

1. Step 1: Write the proportion equation
   78,567.93 : 108,422.16 = 42,758.55 : x
2. Step 2: Convert to fraction form
   78,567.93/108,422.16 = 42,758.55/x
3. Step 3: Cross multiply
   78,567.93x = 108,422.16 × 42,758.55
4. Step 4: Simplify right side
   78,567.93x = 4,635,974,349.47
5. Step 5: Solve for x
   x = 4,635,974,349.47/78,567.93
6. Step 6: Final answer
   x = 59,005.94