Finding the Fourth Proportional to 59,107.61, 81,492.71 and 42,961.65

Step by Step Solution

1. Step 1: Write the proportion equation
   59,107.61 : 81,492.71 = 42,961.65 : x
2. Step 2: Convert to fraction form
   59,107.61/81,492.71 = 42,961.65/x
3. Step 3: Cross multiply
   59,107.61x = 81,492.71 × 42,961.65
4. Step 4: Simplify right side
   59,107.61x = 3,501,061,069.76
5. Step 5: Solve for x
   x = 3,501,061,069.76/59,107.61
6. Step 6: Final answer
   x = 59,231.99