Finding the Fourth Proportional to 90,296.12, 134,895.06 and 58,446.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,296.12 : 134,895.06 = 58,446.72 : x
2. Step 2: Convert to fraction form
   90,296.12/134,895.06 = 58,446.72/x
3. Step 3: Cross multiply
   90,296.12x = 134,895.06 × 58,446.72
4. Step 4: Simplify right side
   90,296.12x = 7,884,173,801.20
5. Step 5: Solve for x
   x = 7,884,173,801.20/90,296.12
6. Step 6: Final answer
   x = 87,314.65