Finding the Fourth Proportional to 92,042.56, 138,090.72 and 36,646.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,042.56 : 138,090.72 = 36,646.72 : x
2. Step 2: Convert to fraction form
   92,042.56/138,090.72 = 36,646.72/x
3. Step 3: Cross multiply
   92,042.56x = 138,090.72 × 36,646.72
4. Step 4: Simplify right side
   92,042.56x = 5,060,571,950.44
5. Step 5: Solve for x
   x = 5,060,571,950.44/92,042.56
6. Step 6: Final answer
   x = 54,980.78