Finding the Fourth Proportional to 78,598.32, 108,465.12 and 42,788.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,598.32 : 108,465.12 = 42,788.32 : x
2. Step 2: Convert to fraction form
   78,598.32/108,465.12 = 42,788.32/x
3. Step 3: Cross multiply
   78,598.32x = 108,465.12 × 42,788.32
4. Step 4: Simplify right side
   78,598.32x = 4,641,040,263.40
5. Step 5: Solve for x
   x = 4,641,040,263.40/78,598.32
6. Step 6: Final answer
   x = 59,047.58