Finding the Fourth Proportional to 70,749.39, 97,641.31 and 40,538.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,749.39 : 97,641.31 = 40,538.72 : x
2. Step 2: Convert to fraction form
   70,749.39/97,641.31 = 40,538.72/x
3. Step 3: Cross multiply
   70,749.39x = 97,641.31 × 40,538.72
4. Step 4: Simplify right side
   70,749.39x = 3,958,253,726.52
5. Step 5: Solve for x
   x = 3,958,253,726.52/70,749.39
6. Step 6: Final answer
   x = 55,947.53