Finding the Fourth Proportional to 92,266, 138,408.72 and 42,337.60

Step by Step Solution

1. Step 1: Write the proportion equation
   92,266 : 138,408.72 = 42,337.60 : x
2. Step 2: Convert to fraction form
   92,266/138,408.72 = 42,337.60/x
3. Step 3: Cross multiply
   92,266x = 138,408.72 × 42,337.60
4. Step 4: Simplify right side
   92,266x = 5,859,893,023.87
5. Step 5: Solve for x
   x = 5,859,893,023.87/92,266
6. Step 6: Final answer
   x = 63,510.86