Finding the Fourth Proportional to 64,146.75, 88,522.65 and 42,976.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,146.75 : 88,522.65 = 42,976.59 : x
2. Step 2: Convert to fraction form
   64,146.75/88,522.65 = 42,976.59/x
3. Step 3: Cross multiply
   64,146.75x = 88,522.65 × 42,976.59
4. Step 4: Simplify right side
   64,146.75x = 3,804,401,634.76
5. Step 5: Solve for x
   x = 3,804,401,634.76/64,146.75
6. Step 6: Final answer
   x = 59,307.78