Finding the Fourth Proportional to 147,640.96, 221,447.40 and 58,870.72

Step by Step Solution

1. Step 1: Write the proportion equation
   147,640.96 : 221,447.40 = 58,870.72 : x
2. Step 2: Convert to fraction form
   147,640.96/221,447.40 = 58,870.72/x
3. Step 3: Cross multiply
   147,640.96x = 221,447.40 × 58,870.72
4. Step 4: Simplify right side
   147,640.96x = 13,036,767,880.13
5. Step 5: Solve for x
   x = 13,036,767,880.13/147,640.96
6. Step 6: Final answer
   x = 88,300.48