Finding the Fourth Proportional to 70,973.36, 97,947.72 and 39,142.32

Step by Step Solution

1. Step 1: Write the proportion equation
   70,973.36 : 97,947.72 = 39,142.32 : x
2. Step 2: Convert to fraction form
   70,973.36/97,947.72 = 39,142.32/x
3. Step 3: Cross multiply
   70,973.36x = 97,947.72 × 39,142.32
4. Step 4: Simplify right side
   70,973.36x = 3,833,900,999.51
5. Step 5: Solve for x
   x = 3,833,900,999.51/70,973.36
6. Step 6: Final answer
   x = 54,018.87