Finding the Fourth Proportional to 78,350.07, 108,123.01 and 42,540.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,350.07 : 108,123.01 = 42,540.99 : x
2. Step 2: Convert to fraction form
   78,350.07/108,123.01 = 42,540.99/x
3. Step 3: Cross multiply
   78,350.07x = 108,123.01 × 42,540.99
4. Step 4: Simplify right side
   78,350.07x = 4,599,659,887.18
5. Step 5: Solve for x
   x = 4,599,659,887.18/78,350.07
6. Step 6: Final answer
   x = 58,706.52