Finding the Fourth Proportional to 69,920.92, 96,488.15 and 42,742.51

Step by Step Solution

1. Step 1: Write the proportion equation
   69,920.92 : 96,488.15 = 42,742.51 : x
2. Step 2: Convert to fraction form
   69,920.92/96,488.15 = 42,742.51/x
3. Step 3: Cross multiply
   69,920.92x = 96,488.15 × 42,742.51
4. Step 4: Simplify right side
   69,920.92x = 4,124,145,713.02
5. Step 5: Solve for x
   x = 4,124,145,713.02/69,920.92
6. Step 6: Final answer
   x = 58,983.00