Finding the Fourth Proportional to 78,511.82, 108,345.54 and 42,702.14

Step by Step Solution

1. Step 1: Write the proportion equation
   78,511.82 : 108,345.54 = 42,702.14 : x
2. Step 2: Convert to fraction form
   78,511.82/108,345.54 = 42,702.14/x
3. Step 3: Cross multiply
   78,511.82x = 108,345.54 × 42,702.14
4. Step 4: Simplify right side
   78,511.82x = 4,626,586,417.46
5. Step 5: Solve for x
   x = 4,626,586,417.46/78,511.82
6. Step 6: Final answer
   x = 58,928.53