Finding the Fourth Proportional to 78,572.63, 108,432.52 and 42,764.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,572.63 : 108,432.52 = 42,764.96 : x
2. Step 2: Convert to fraction form
   78,572.63/108,432.52 = 42,764.96/x
3. Step 3: Cross multiply
   78,572.63x = 108,432.52 × 42,764.96
4. Step 4: Simplify right side
   78,572.63x = 4,637,111,838.34
5. Step 5: Solve for x
   x = 4,637,111,838.34/78,572.63
6. Step 6: Final answer
   x = 59,016.89