Finding the Fourth Proportional to 78,476.44, 108,300.63 and 42,666.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,476.44 : 108,300.63 = 42,666.34 : x
2. Step 2: Convert to fraction form
   78,476.44/108,300.63 = 42,666.34/x
3. Step 3: Cross multiply
   78,476.44x = 108,300.63 × 42,666.34
4. Step 4: Simplify right side
   78,476.44x = 4,620,791,501.79
5. Step 5: Solve for x
   x = 4,620,791,501.79/78,476.44
6. Step 6: Final answer
   x = 58,881.26