Finding the Fourth Proportional to 62,970.72, 86,888.16 and 37,820.64

Step by Step Solution

1. Step 1: Write the proportion equation
   62,970.72 : 86,888.16 = 37,820.64 : x
2. Step 2: Convert to fraction form
   62,970.72/86,888.16 = 37,820.64/x
3. Step 3: Cross multiply
   62,970.72x = 86,888.16 × 37,820.64
4. Step 4: Simplify right side
   62,970.72x = 3,286,165,819.62
5. Step 5: Solve for x
   x = 3,286,165,819.62/62,970.72
6. Step 6: Final answer
   x = 52,185.62