Finding the Fourth Proportional to 55,592.16, 83,300.91 and 42,972.83

Step by Step Solution

1. Step 1: Write the proportion equation
   55,592.16 : 83,300.91 = 42,972.83 : x
2. Step 2: Convert to fraction form
   55,592.16/83,300.91 = 42,972.83/x
3. Step 3: Cross multiply
   55,592.16x = 83,300.91 × 42,972.83
4. Step 4: Simplify right side
   55,592.16x = 3,579,676,289.29
5. Step 5: Solve for x
   x = 3,579,676,289.29/55,592.16
6. Step 6: Final answer
   x = 64,391.75