Finding the Fourth Proportional to 78,602.21, 108,473.32 and 42,792.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,602.21 : 108,473.32 = 42,792.83 : x
2. Step 2: Convert to fraction form
   78,602.21/108,473.32 = 42,792.83/x
3. Step 3: Cross multiply
   78,602.21x = 108,473.32 × 42,792.83
4. Step 4: Simplify right side
   78,602.21x = 4,641,880,342.30
5. Step 5: Solve for x
   x = 4,641,880,342.30/78,602.21
6. Step 6: Final answer
   x = 59,055.34