Finding the Fourth Proportional to 42,875.61, 59,116.07 and 31,510.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,875.61 : 59,116.07 = 31,510.50 : x
2. Step 2: Convert to fraction form
   42,875.61/59,116.07 = 31,510.50/x
3. Step 3: Cross multiply
   42,875.61x = 59,116.07 × 31,510.50
4. Step 4: Simplify right side
   42,875.61x = 1,862,776,766.18
5. Step 5: Solve for x
   x = 1,862,776,766.18/42,875.61
6. Step 6: Final answer
   x = 43,446.07