Finding the Fourth Proportional to 70,653.32, 105,881.42 and 53,102.60

Step by Step Solution

1. Step 1: Write the proportion equation
   70,653.32 : 105,881.42 = 53,102.60 : x
2. Step 2: Convert to fraction form
   70,653.32/105,881.42 = 53,102.60/x
3. Step 3: Cross multiply
   70,653.32x = 105,881.42 × 53,102.60
4. Step 4: Simplify right side
   70,653.32x = 5,622,578,693.69
5. Step 5: Solve for x
   x = 5,622,578,693.69/70,653.32
6. Step 6: Final answer
   x = 79,579.82