Finding the Fourth Proportional to 62,196.84, 85,763.80 and 42,018.68

Step by Step Solution

1. Step 1: Write the proportion equation
   62,196.84 : 85,763.80 = 42,018.68 : x
2. Step 2: Convert to fraction form
   62,196.84/85,763.80 = 42,018.68/x
3. Step 3: Cross multiply
   62,196.84x = 85,763.80 × 42,018.68
4. Step 4: Simplify right side
   62,196.84x = 3,603,681,667.78
5. Step 5: Solve for x
   x = 3,603,681,667.78/62,196.84
6. Step 6: Final answer
   x = 57,939.95