Finding the Fourth Proportional to 112,385.83, 168,603.39 and 42,265.15

Step by Step Solution

1. Step 1: Write the proportion equation
   112,385.83 : 168,603.39 = 42,265.15 : x
2. Step 2: Convert to fraction form
   112,385.83/168,603.39 = 42,265.15/x
3. Step 3: Cross multiply
   112,385.83x = 168,603.39 × 42,265.15
4. Step 4: Simplify right side
   112,385.83x = 7,126,047,568.86
5. Step 5: Solve for x
   x = 7,126,047,568.86/112,385.83
6. Step 6: Final answer
   x = 63,406.99