Finding the Fourth Proportional to 70,728.96, 97,602.12 and 38,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,728.96 : 97,602.12 = 38,892.72 : x
2. Step 2: Convert to fraction form
   70,728.96/97,602.12 = 38,892.72/x
3. Step 3: Cross multiply
   70,728.96x = 97,602.12 × 38,892.72
4. Step 4: Simplify right side
   70,728.96x = 3,796,011,924.57
5. Step 5: Solve for x
   x = 3,796,011,924.57/70,728.96
6. Step 6: Final answer
   x = 53,669.84