Finding the Fourth Proportional to 78,711.02, 108,621.29 and 42,901.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,711.02 : 108,621.29 = 42,901.06 : x
2. Step 2: Convert to fraction form
   78,711.02/108,621.29 = 42,901.06/x
3. Step 3: Cross multiply
   78,711.02x = 108,621.29 × 42,901.06
4. Step 4: Simplify right side
   78,711.02x = 4,659,968,479.57
5. Step 5: Solve for x
   x = 4,659,968,479.57/78,711.02
6. Step 6: Final answer
   x = 59,203.51