Finding the Fourth Proportional to 126,458.72, 189,697.80 and 37,705.28

Step by Step Solution

1. Step 1: Write the proportion equation
   126,458.72 : 189,697.80 = 37,705.28 : x
2. Step 2: Convert to fraction form
   126,458.72/189,697.80 = 37,705.28/x
3. Step 3: Cross multiply
   126,458.72x = 189,697.80 × 37,705.28
4. Step 4: Simplify right side
   126,458.72x = 7,152,608,664.38
5. Step 5: Solve for x
   x = 7,152,608,664.38/126,458.72
6. Step 6: Final answer
   x = 56,560.82