Finding the Fourth Proportional to 92,926.47, 139,368.69 and 42,979.16

Step by Step Solution

1. Step 1: Write the proportion equation
   92,926.47 : 139,368.69 = 42,979.16 : x
2. Step 2: Convert to fraction form
   92,926.47/139,368.69 = 42,979.16/x
3. Step 3: Cross multiply
   92,926.47x = 139,368.69 × 42,979.16
4. Step 4: Simplify right side
   92,926.47x = 5,989,948,529.66
5. Step 5: Solve for x
   x = 5,989,948,529.66/92,926.47
6. Step 6: Final answer
   x = 64,459.01