Finding the Fourth Proportional to 62,870.79, 86,740.45 and 35,643.96

Step by Step Solution

1. Step 1: Write the proportion equation
   62,870.79 : 86,740.45 = 35,643.96 : x
2. Step 2: Convert to fraction form
   62,870.79/86,740.45 = 35,643.96/x
3. Step 3: Cross multiply
   62,870.79x = 86,740.45 × 35,643.96
4. Step 4: Simplify right side
   62,870.79x = 3,091,773,041.07
5. Step 5: Solve for x
   x = 3,091,773,041.07/62,870.79
6. Step 6: Final answer
   x = 49,176.62