Finding the Fourth Proportional to 92,690.51, 139,077.30 and 42,743.83

Step by Step Solution

1. Step 1: Write the proportion equation
   92,690.51 : 139,077.30 = 42,743.83 : x
2. Step 2: Convert to fraction form
   92,690.51/139,077.30 = 42,743.83/x
3. Step 3: Cross multiply
   92,690.51x = 139,077.30 × 42,743.83
4. Step 4: Simplify right side
   92,690.51x = 5,944,696,468.06
5. Step 5: Solve for x
   x = 5,944,696,468.06/92,690.51
6. Step 6: Final answer
   x = 64,134.90