Finding the Fourth Proportional to 70,499.48, 105,715.74 and 40,926.38

Step by Step Solution

1. Step 1: Write the proportion equation
   70,499.48 : 105,715.74 = 40,926.38 : x
2. Step 2: Convert to fraction form
   70,499.48/105,715.74 = 40,926.38/x
3. Step 3: Cross multiply
   70,499.48x = 105,715.74 × 40,926.38
4. Step 4: Simplify right side
   70,499.48x = 4,326,562,547.22
5. Step 5: Solve for x
   x = 4,326,562,547.22/70,499.48
6. Step 6: Final answer
   x = 61,370.13