Finding the Fourth Proportional to 92,729.58, 139,090.52 and 42,793.08

Step by Step Solution

1. Step 1: Write the proportion equation
   92,729.58 : 139,090.52 = 42,793.08 : x
2. Step 2: Convert to fraction form
   92,729.58/139,090.52 = 42,793.08/x
3. Step 3: Cross multiply
   92,729.58x = 139,090.52 × 42,793.08
4. Step 4: Simplify right side
   92,729.58x = 5,952,111,749.60
5. Step 5: Solve for x
   x = 5,952,111,749.60/92,729.58
6. Step 6: Final answer
   x = 64,187.84