Finding the Fourth Proportional to 106,978.76, 147,630.72 and 58,583.76

Step by Step Solution

1. Step 1: Write the proportion equation
   106,978.76 : 147,630.72 = 58,583.76 : x
2. Step 2: Convert to fraction form
   106,978.76/147,630.72 = 58,583.76/x
3. Step 3: Cross multiply
   106,978.76x = 147,630.72 × 58,583.76
4. Step 4: Simplify right side
   106,978.76x = 8,648,762,669.11
5. Step 5: Solve for x
   x = 8,648,762,669.11/106,978.76
6. Step 6: Final answer
   x = 80,845.61