Finding the Fourth Proportional to 78,322.69, 108,082.40 and 42,511.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,322.69 : 108,082.40 = 42,511.93 : x
2. Step 2: Convert to fraction form
   78,322.69/108,082.40 = 42,511.93/x
3. Step 3: Cross multiply
   78,322.69x = 108,082.40 × 42,511.93
4. Step 4: Simplify right side
   78,322.69x = 4,594,791,423.03
5. Step 5: Solve for x
   x = 4,594,791,423.03/78,322.69
6. Step 6: Final answer
   x = 58,664.88