Finding the Fourth Proportional to 55,091.08, 76,062.30 and 42,321.52

Step by Step Solution

1. Step 1: Write the proportion equation
   55,091.08 : 76,062.30 = 42,321.52 : x
2. Step 2: Convert to fraction form
   55,091.08/76,062.30 = 42,321.52/x
3. Step 3: Cross multiply
   55,091.08x = 76,062.30 × 42,321.52
4. Step 4: Simplify right side
   55,091.08x = 3,219,072,150.70
5. Step 5: Solve for x
   x = 3,219,072,150.70/55,091.08
6. Step 6: Final answer
   x = 58,431.82