Finding the Fourth Proportional to 78,501.01, 108,328.38 and 42,691.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78,501.01 : 108,328.38 = 42,691.07 : x
2. Step 2: Convert to fraction form
   78,501.01/108,328.38 = 42,691.07/x
3. Step 3: Cross multiply
   78,501.01x = 108,328.38 × 42,691.07
4. Step 4: Simplify right side
   78,501.01x = 4,624,653,751.83
5. Step 5: Solve for x
   x = 4,624,653,751.83/78,501.01
6. Step 6: Final answer
   x = 58,912.03